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{{Short description|Association football club in Northern Ireland}}
{{Redirect|The Glens|the Scottish and Irish term for valley|Glen|the region of Northern Ireland|Glens of Antrim|other uses|Glen (disambiguation)}}
{{Use dmy dates|date=October 2022}}
{{Infobox football club
| clubname = Glentoran
| image = Glentoran_FC_logo.png
| image_size = 140px
| fullname = Glentoran Football Club
| nickname = The Glens<br>The Cock and Hens
| founded = {{Start date and age|df=yes|1882}}
| ground = [[The Oval (Belfast)|The Oval]]
| capacity = 26,556 (6,050 safe capacity)
| owner = Ali Pour
| chairman = Colin Jess
| manager = [[Declan Devine]]
| league  = [[NIFL Premiership]]
| season  = [[2024–25 NIFL Premiership|2024–25]]
| position = [[NIFL Premiership]], 3rd of 12
| current = 2023–24 Glentoran F.C. season
| website = {{URL|http://glentoran.com/}}
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'''Glentoran Football Club''' is a professional [[association football|football]] club based in East [[Belfast]], [[Northern Ireland]], that plays in the [[NIFL Premiership]]. The club was founded in 1882 and has since won more than 130 major honours. They are one of three Northern Irish teams to have [[List of unrelegated association football clubs|never been relegated]].

==History==
{{recentism|date=April 2023}}

===The early years===
[[File:Vienna XI - Glentoran (1914) (Ill.Oe.SBl. 140604-4).jpg|thumb|Vienna XI (white) - Glentoran (1914)]]Glentoran was founded in 1882 by the workers of the Protestant-dominated Harland & Wolff shipyard, and draws much of its identity from its industrial roots in East Belfast. The shipyard’s cranes still overlook their ground - The Oval - symbolising the club’s heritage.<ref>{{Cite book |last=Magee |first=Jonathon |title=Sport and the Irish : histories, identities, issues |publisher=Dublin : University College Dublin Press |year=2006 |isbn=1-904558-33-X |location=Dublin}}</ref>  In 1889, Glentoran FC was established as a limited company, and benefited from investments by local industrial leaders Viscount Pirrie and G.W. Wolff. This investment further tied the club to the nearby Harland and Wolff shipyard workers.<ref>{{Cite book |last=Magee |first=Jonathon |title=The bountiful game: football identities and finances |publisher=Aachen : Meyer & Meyer Sport |year=2005}}</ref>
[[File:Linfield v Glentoran.jpg|thumb|Published Friday 14 September 1894 in the Ulster Football and Cycling News, an Advert for a game between ex-Irish League Champions Linfield and the recently crowned champions, Glentoran.]]
Glentoran made its first appearance in the [[Irish Cup]] during the 1886-87 season.  They reached the semi-final of the competition, where they were beaten 2-1 by [[Ulster F.C.|Ulster]].<ref name=":2" />  The Irish League was established in 1890, with Glentoran being among the founding members, alongside [[Clarence F.C.|Clarence]], [[Cliftonville F.C.|Cliftonville]], [[Lisburn Distillery F.C.|Distillery]], [[Linfield F.C.|Linfield]], [[Milford F.C.|Milford]], [[Oldpark F.C.|Oldpark]] and Ulster. In the inaugural season, Glentoran finished in 5th place.<ref name=":2">{{Cite book |last=Graham |first=Alexander |title=Football in Northern Ireland : a statistical record 1881-2005 |publisher=Cleethorpes : Soccer |year=2006}}</ref> In 1894, Glentoran won the first of its 23 league titles.<ref name=":2" /><ref>{{Cite web |title=Glentoran honours |url=https://www.glentoran.com/honours |access-date=3 December 2024 |website=Glentoran FC}}</ref>

=== Vienna Cup ===
In 1914, Glentoran undertook their first European tour, with the key highlight being their participation and victory in the Vienna Cup. The tour began with a 4-3 loss to Deutsche in Prague, followed by a 4-1 win over Hertha Berlin. The team then traveled to Vienna for the Vienna Cup, a week-long tournament organised by the Vienna Football Club. In the first match against a Vienna select team, Glentoran dominated but conceded a late equalizer, resulting in a 1-1 draw. The final match was decisive, and Glentoran secured a convincing victory to win the Vienna Cup, making them the first British team to claim a European trophy.<ref name=":0">{{Cite news |date=12 May 2022 |title=Glentoran set to commemorate winning first-ever European competition with a gold star on their shirts |url=https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran-set-to-commemorate-winning-first-ever-european-competition-with-a-gold-star-on-their-shirts/41641291.html |url-status=live |archive-url=https://web.archive.org/web/20230801001217/https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran-set-to-commemorate-winning-first-ever-european-competition-with-a-gold-star-on-their-shirts/41641291.html |archive-date=1 August 2023 |access-date=1 August 2023 |newspaper=Belfasttelegraph.co.uk}}</ref><ref name=":1">{{cite news |last=Luney |first=Graham |date=8 February 2007 |title=Glens set to get the party started |url=http://www.belfasttelegraph.co.uk/sport/football/local/article2249104.ece |url-status=live |archive-url=https://web.archive.org/web/20070930152527/http://www.belfasttelegraph.co.uk/sport/football/local/article2249104.ece |archive-date=30 September 2007 |access-date=13 March 2007 |newspaper=[[The Belfast Telegraph]] |publisher=Independent News & Media}}</ref>

===1960s===
In 1964–65, Glentoran faced [[Panathinaikos F.C.|Panathinaikos]] in the [[Uefa Champions League|European Cup]] and drew 2–2 at home and lost 3–2 away. In the following season's [[UEFA Cup|Fairs Cup]], they faced [[Royal Antwerp F.C.|Antwerp]] resulting a 1–0 defeat away and 3–3 draw at home. The [[UEFA Cup Winners' Cup|Cup-Winners' Cup]] in 1966–67 saw Glentoran draw 1–1 with [[Rangers F.C.|Rangers]] in front of a packed Oval before losing the away leg 4–0.

Glentoran’s greatest moment in Europe came in a 1967 European Cup tie against Benfica. In the first leg at The Oval, Glentoran took an early lead with a penalty before football legend Eusébio equalized, ending the match 1–1. In the return leg at Benfica’s Estádio da Luz, part-time Glentoran defied expectations with a 0–0 draw. Although Benfica advanced on away goals, Glentoran became the first team eliminated by this rule and the first to prevent Benfica from scoring at home.<ref>{{cite news |date=10 August 2011 |title=1967/68 European Champions Clubs' Cup – Glentoran FC |url=https://www.uefa.com/uefachampionsleague/history/clubs/50056--glentoran/ |access-date=22 August 2012 |publisher=UEFA}}</ref>

In 1967, Glentoran took the unusual step of running the [[Detroit Cougars (soccer)|Detroit Cougars]] football franchise in the [[United Soccer Association]].<ref>{{cite web|url=http://www.glentoran-fc.co.uk/cougars.htm|title=Glentoran Football Club - The Pride of East Belfast - Detroit Cougars|website=www.glentoran-fc.co.uk|access-date=13 March 2007|archive-date=1 August 2020|archive-url=https://web.archive.org/web/20200801014942/http://www.glentoran-fc.co.uk/cougars.htm|url-status=live}}</ref> The newly formed league had planned for an inaugural season in 1968, but when the rival [[National Professional Soccer League (1967)|National Professional Soccer League]] announced a start date of 1967 and a television contract with [[CBS]], the league owners decided to fast track their league by importing entire squads from Europe and South America.

[[George Best]] watched Glentoran with his grandfather as a youth, but was rejected by the club for being "too small and light". However, Best did make one appearance for Glentoran, in the club's centenary match against [[Manchester United F.C.|Manchester United]].<ref>{{cite news |date=14 August 2006 |title=Glens land Man Utd glamour match |url=https://news.bbc.co.uk/sport2/hi/football/irish/4790307.stm |url-status=live |archive-url=https://web.archive.org/web/20060824101511/http://news.bbc.co.uk/sport1/hi/football/irish/4790307.stm |archive-date=24 August 2006 |access-date=13 March 2007 |work=BBC Sport}}</ref>

===1970s===
The club won the Irish league title in 1972 and 1977, coupled with an Irish Cup win in 1973. This cup win gave Glentoran a place the following season in the European Cup Winners Cup. In November 1973, Glentoran made history by becoming the first Irish club to reach the quarter-finals of the competition with a 3–1 victory over Brann in Belfast, following a 1–1 draw in Bergen.<ref>{{Cite news |date=8 November 1973 |title=Glentoran make cup history |work=Daily Express |pages=23}}</ref> They faced [[Borussia Mönchengladbach]] in the quarter-finals and were beaten 2–0 and 5–0. Four seasons later they faced [[Juventus FC|Juventus]] in a European Cup match and lost 1–0 at home and 5–0 away.

===1980s===
In 1981–82, Glentoran reached the second round of the European Cup and faced eventual semi-finalists [[PFC CSKA Sofia|CSKA Sofia]]. After a 2–0 defeat away, Glentoran went 2–0 up in the return leg to force the game into extra time. The final result was 2–1, Glentoran going out 3–2 on aggregate.

The 1985 Irish Cup final between Glentoran and Linfield featured a memorable incident: Glentoran fans brought a cockerel, their club emblem, and a pig painted in Linfield’s royal blue to the match, both of which stayed on the sidelines throughout. Fans repeated the cockerel tradition at the 2006 final, but Glentoran lost 2–1, ending their unbeaten post-war record of five consecutive Irish Cup final victories against Linfield, a streak that began in 1966.<ref>{{cite news |date=6 November 2005 |title=Ten oddest animal camoes |url=https://www.theguardian.com/observer/osm/story/0,,1606907,00.html |url-status=live |archive-url=https://web.archive.org/web/20120603113005/http://observer.guardian.co.uk/osm/story/0,,1606907,00.html |archive-date=3 June 2012 |access-date=13 March 2007 |work=Observer Sport Monthly |publisher=Guardian Media Group}}</ref>

===1990s===
In 1995 Glentoran played their traditional [[Boxing Day]] match against Linfield on a snow-covered pitch. In the first half the orange ball was damaged, and not having a replacement the teams were forced to play with a white ball for the remainder of the game. The incident was used{{when|date=October 2022}} as a "What Happened Next" question on the [[BBC]]'s ''[[A Question of Sport]]''.<ref>{{youTube|id=d48a6MDmCBM}}</ref>

Former Linfield manager [[Roy Coyle]] took charge of the club in 1997 and under his stewardship the club entered another period of success. In Coyle's first cup final in charge he gave up the right to lead the team out, instead he asked long serving Kitman Teddy Horner have this honour.<ref>{{Cite news |date=2 May 1998 |title=First Half |work=Ireland's Saturday Night}}</ref>

===2000s===
The 2002–03 season was one of the club's most successful in recent times. Of a potential four trophies, Glentoran won three, capturing the Irish League championship, Irish League Cup and County Antrim Shield but fell at the final hurdle, losing the Irish Cup Final 1–0 to Coleraine. The only Irish League to complete the clean sweep of all trophies is Linfield who have achieved this on 3 occasions. They won 7 trophies in 1921–22 and 7 in 1961–62 and also 4 trophies in 1955–56. To come so close to a clean sweep in 2003 and fail was a bitter pill to swallow.

On 23 April 2005, Glentoran defeated their rivals [[Linfield F.C.|Linfield]] in the second last game but one of the league season. In the 93rd minute of the match, Glentoran, who needed victory in order to have a chance of clinching the league title, scored a goal via their centre forward (and former Linfield player) Chris Morgan. There were confrontations between the two sets of fans following the match. [[Football hooliganism|Hooliganism]] was commonplace at matches between the clubs in the past.<ref>{{cite news|url=https://news.bbc.co.uk/sport2/hi/football/irish/4477177.stm|work=BBC Sport|title=Crowd trouble mars Belfast derby|date=23 April 2005|access-date=15 February 2006|archive-date=1 August 2020|archive-url=https://web.archive.org/web/20200801040453/http://news.bbc.co.uk/sport2/hi/football/irish/4477177.stm|url-status=live}}</ref>

[[Roy Coyle]] won 16 trophies with Glentoran and is the club's most successful manager in the club's history.

===Financial troubles (2011–2019)===
====Millar (2006–2007)====
After eight years in charge of Glentoran, [[Roy Coyle]] resigned as manager after a string of indifferent results. On 14 February 2006 the club announced that former [[Newry City F.C.|Newry City]] manager [[Paul Millar (footballer, born 1966)|Paul Millar]] was to take over the manager's position.<ref>{{cite news|url=https://news.bbc.co.uk/sport2/hi/football/irish/4712836.stm|work=BBC Sport|date=14 February 2006|title=Millar appointed Glentoran boss|access-date=15 February 2006|archive-date=1 August 2020|archive-url=https://web.archive.org/web/20200801033719/http://news.bbc.co.uk/sport2/hi/football/irish/4712836.stm|url-status=live}}</ref> He led the team into the Irish Cup final with rivals Linfield. Despite taking the lead in the first half, Linfield won the game with two goals from Peter Thompson. He also led his new club to their biggest ever defeat against their cross-city rivals Linfield in a 6–0 defeat at [[Windsor Park]]. The Glens had sought to reduce the gap between them and Linfield by signing Kyle Neill and Gary Hamilton from Portadown and re-signing former fan's favourite Gary Smyth. Also arriving was another former player, Jason Hill, former [[Portadown F.C.|Portadown]] and Newry City player Cullen Feeney and promising young keeper Ciaran McLaughlin from [[Ards F.C.|Ards]].

[[Paul Millar (footballer, born 1966)|Paul Millar]] was dismissed as manager on 17 May 2007, after just 15 months in the role. Despite leading the team to two consecutive second-place finishes behind Linfield, he lost the support of the board and fans.<ref>{{Cite news |date=19 May 2007 |title=Sacked by phone |work=Belfast Telegraph |pages=7}}</ref> 

====McDonald (2007–2010)====
On 24 May 2007 former [[Crusaders F.C.|Crusaders]] and [[Glenavon F.C.|Glenavon]] manager [[Roy Walker (footballer)|Roy Walker]] was appointed as Glentoran manager along with assistant manager Billy Sinclair. Walker previously led Crusaders to two league titles in 1995 and 1997. After leaving football management for seven years, Walker became a football analyst with [[BBC Radio Ulster]]. He was quoted as saying, "Glentoran were my boyhood team and are probably the only club which could have attracted me back."<ref>{{cite news|url=https://news.bbc.co.uk/sport1/hi/football/irish/6685525.stm|title=Walker takes over as Glens boss|work=BBC Sport|date=24 May 2007|access-date=24 May 2007|archive-date=27 May 2007|archive-url=https://web.archive.org/web/20070527022626/http://news.bbc.co.uk/sport1/hi/football/irish/6685525.stm|url-status=live}}</ref>

However, on 26 May 2007 it was revealed that Walker would not be able to take up the post, due to not possessing the necessary UEFA coaching qualifications.<ref>{{cite news|url=https://news.bbc.co.uk/sport1/hi/football/irish/6695123.stm|title=Walker unable to take Glens job|work=BBC Sport|date=26 May 2007}}</ref> Less than a week later, Glentoran appointed Alan McDonald as manager, replacing Roy Walker, who stepped down but vowed not to rest until director of football Tom Dick resigned. Dick eventually did so but criticized chairman Stafford Reynolds, who later announced he would step down if a suitable replacement was found. As manager, McDonald secured several players, including former Glentoran player Rory Hamill, Daryl Fordyce (Portsmouth), Jamie McGovern (West Brom), David Scullion (Dungannon Swifts), and re-signed Chris Morgan and Tim McCann. Meanwhile, Darren Lockhart and Gary Smith left on loan to Crusaders. In January, Glentoran added Shane McCabe (Dungannon) and Darren Boyce (Coleraine) to the squad.<ref>{{cite news |last=Luney |first=Graham |date=18 June 2007 |title=Big Mac bringing passion to Oval |url=http://www.belfasttelegraph.co.uk/sport/football/local/article2670537.ece |url-status=live |archive-url=https://web.archive.org/web/20070930181250/http://www.belfasttelegraph.co.uk/sport/football/local/article2670537.ece |archive-date=30 September 2007 |access-date=19 June 2007 |newspaper=The Belfast Telegraph |publisher=Independent News & Media}}</ref>

Alan McDonald won two trophies with The Glens and also led the Glens to the final of the Setanta Cup. In McDonald's first season as manager, Glentoran defeated Crusaders in the County Antrim Shield final. The next season, Glentoran won the league after a strong race with Linfield. Glentoran finished three successive seasons, 2006–2008, as runners-up to three times Double Champions Linfield. Since then, notable signings at the club include Matthew Burrows, from Dundela (where he scored fifty-three goals last term), Johnny Taylor (from [[Heart of Midlothian F.C.|Hearts]]) and former Lisburn Distillery player Andy Waterworth for a fee of £30,000. Glentoran's build up to the season included friendlies against Hearts, [[Burnley F.C.|Burnley]] and [[Ipswich Town F.C.|Ipswich Town]]. However, Glentoran's start to the season was delayed by a referee strike led by their association's Chairman, David Malcolm, citing higher wage demands. This ultimately postponed all week one fixtures. The following week, in the game against Glenavon, Glentoran's pitch was declared unplayable. Matches against [[Bangor F.C.|Bangor]] and then Linfield were cancelled, and this led to Glentoran facing Bangor in the first Irish League game to be played on a Sunday. The historic scoreline was 1–0.{{citation needed|date=October 2022}}

Glentoran also unexpectedly reached the final of the [[Setanta Sports Cup 2008]], a cup in which the top four clubs from both the Irish League and [[League of Ireland]] play each other. Glentoran defeated Linfield with a 4–1 win, making the group a more open competition. This was followed up by a 1–0 win in a home match again St. Patrick's Athletic. In the final on 13 October 2008, Glentoran were defeated by League of Ireland side Cork City 2–1 at Turners Cross. On 2 May 2009 Glentoran won the first ever Irish Premiership by defeating Cliftonville 3–1 at The Oval. This was their first league title since a 2005 win, ending Linfield's 3-year dominance on all fronts. Alan McDonald would in the coming weeks sign a new 2-year contract with the club after much speculation, keeping him there until 2011. Glentoran's only summer signings for 2009 were Richard Clarke from [[Newry City F.C.|Newry City]] and Northern Ireland international [[Keith Gillespie]] on a free transfer.{{citation needed|date=October 2022}}

====Young (2010–2012)====
{{unreferenced section|date=October 2022}}
In March 2010, after McDonald resigned, former player [[Scott Young (Scottish footballer)|Scott Young]] was put in charge of the Glens until the end of the 2010–11 season along with Pete Batey as assistant manager and Tim McCann as head coach. Young led Glentoran into the [[2009–10 Irish League Cup]] final against [[Coleraine F.C.|Coleraine]]. The bannsiders were the favourites for the match but the Glens were the team who came out victorious, winning 4–1 on penalties after the match ended in a 2–2 draw. At the end of the season, Young along with Batey and McCann signed a deal with the Glens to stay on as manager. Former Glentoran manager [[Roy Coyle]], who brought a huge amount of success, became director of football.

Young released some of the club's higher-profile players, including [[Michael Halliday (footballer)|Michael Halliday]] and [[Keith Gillespie]]. Halliday joined North Belfast side [[Crusaders F.C.|Crusaders]]. Kyle Neill also left the club and joined [[Glenavon F.C.|Glenavon]]. Dean Fitzgerald and Shane McCabe were also among the players released.

[[Gary Hamilton (footballer born 1980)|Gary Hamilton]] went out on loan to Glenavon, and back in December 2011 took on the role as manager of the club (after the resignation of Marty Quinn), after being released of his playing obligations by Glentoran. During Young's first season as manager, Glentoran's financial difficulties escalated, until [[HMRC]] issued Glentoran a winding-up order, and gave the club until the beginning of January 2011 to clear all outstanding debts which totalled over £300,000. A fundraising organisation, Spirit of '41 (which was named after the year when The Oval was bombed by Germans and the massive effort to rebuild it) was set up, and to this day has raised over £25,000. On 12 January 2011, a special [[Extraordinary general meeting|EGM]] was held which set out the proposals that would save Glentoran from oblivion and change radically how the club is run. The vote was passed unanimously with the condition that 3 new board members were added, including a new chairman, and the previous chairman stepped down to vice-chairman.

On 5 October 2010, Glentoran player [[Matty Burrows]] scored a backheel goal against [[Portadown F.C.|Portadown]], which won Burrows the [[ESPN]] goal of the season and [[Sky Sports]] goal of the season. The goal also achieved millions of views on YouTube and went up against world-famous player [[Lionel Messi]] for the FIFA goal of the season award. Burrows narrowly lost out on the award with many{{who|date=October 2022}} saying he did not win because he wasn't a high-profile player.

On 7 July 2011, Glentoran beat Macedonian side [[FK Renova]] in the Europa League first qualifying round after the Glens overturned a 2–1 away defeat by winning the home leg 2–1 at The Oval and thus levelling the score on aggregate. The match was decided by penalties. Glentoran progressed after winning the shoot-out 3–2.

Young started his second season very well, with a 2–1 win away to [[Crusaders F.C.|Crusaders]]. However, the 2011–12 season would turn out to be disappointing for Young and the club. [[Rory Patterson]] was set to come back at the club, but could not agree on the contract following the finance problems. Patterson joined Glentoran's bitter rivals [[Linfield F.C.|Linfield]]. However, [[Matty Burrows]] returned to the club, but struggled to maintain his place. The club then started to go through a run of poor results and started to lose supporters. Despite beating [[Linfield F.C.|Linfield]] three times, Glentoran lost in the [[County Antrim Shield]] final to [[Cliftonville F.C.|Cliftonville]] and continued their losing streak in the league. On 14 January 2012, Glentoran were knocked out of the [[2011–12 Irish Cup]] by Amateur league side [[Newington Youth Club F.C.|Newington Youth Club]]. Young then resigned after the game. Director of Football [[Roy Coyle]] was put in charge for the match against [[Ballymena United F.C.|Ballymena United]].

====Patterson (2012–2015)====
{{unreferenced section|date=October 2022}}
Former [[Lisburn Distillery F.C.|Lisburn Distillery]] boss [[Paul Kirk (footballer)|Paul Kirk]], former Crusaders and [[Ballymena United F.C.|Ballymena United]] boss [[Roy Walker (footballer)|Roy Walker]], former Cliftonville boss [[Eddie Patterson]], and former [[Coleraine F.C.|Coleraine]] boss [[Marty Quinn (footballer)|Marty Quinn]] were among the possible contenders for the job including former player Pat McGibbon and Ian Foster. Walker and Patterson applied for the job along with McGibbon and Foster on 1 February 2012. Patterson was appointed manager of the club on Wednesday 22 February 2012. Glentoran finished the [[2011–12 IFA Premiership|2011–12 league season]] in 6th place, a massive 28 points behind the league champions; cross-city rivals Linfield. However, some consolation came from the fact that they beat Linfield in all four league meetings between the sides that season, without conceding a goal in the process.

During the summer of 2012, Patterson made several signings such as Marcus Kane, Jay Magee and Mark Clarke. The Glens started the [[2012–13 IFA Premiership|2012–13 season]] well with a 3–1 victory over [[Donegal Celtic F.C.|Donegal Celtic]]. This was followed by three consecutive 1–1 draws against Glenavon, Cliftonville and Linfield. One day before the game against Linfield, the club announced the signing of [[Stuart Elliott (footballer, born 1978)|Stuart Elliott]], who was returning to the club where he made his name before moving across the water to play for [[Hull City A.F.C.|Hull City]], [[Motherwell F.C.|Motherwell]] and [[Hamilton Academical F.C.|Hamilton Academical]]. Glentoran defeated [[Ballinamallard United F.C.|Ballinamallard United]] 4–1 and [[Dungannon Swifts F.C.|Dungannon Swifts]] 3–1 in the space of a week, pushing them up to second in the league. The Glens then secured a 0–0 home draw against Coleraine in a top of the table clash before defeating Lisburn Distillery 3–0 a week later. A 1–1 draw against Ballymena United at the Showgrounds made it nine league games unbeaten from the start of the season.

However, the unbeaten run came to an end in the next game when Crusaders won 2–0 at Seaview on 6 October 2012, just 5 days after an enthralling County Antrim Shield quarter-final defeat against Linfield which saw three goals in the final minutes of the game, ending 3–2 to Linfield. One week after the Crusaders loss, Glentoran was beaten for the second successive league game (their first home loss of the season), when Portadown won 1–0 at The Oval.

The club's financial problems would soon come to light again. In November 2012 it was reported that the squad had refused to train because they had not received their wages for two months. If the problem continued, it may have reached the stage where the players would have the right to be released from their contracts. Back on the field, the club had mixed results in the next six league games. Three wins, a draw, and two defeats which included a disappointing 2–1 loss away to Donegal Celtic, left the Glens sitting in fifth place in the league at the end of November, twelve points behind pacesetters Cliftonville.

The [[2012–13 IFA Premiership|2012–13 league campaign]] ultimately ended with the club finishing fourth in the table. However, the season ended on a high note as the Glens overcame favourites and newly crowned league champions [[Cliftonville F.C.|Cliftonville]] 3–1 after extra time in the [[2012–13 Irish Cup|Irish Cup final]] on 4 May 2013. This was the club's first Irish Cup win in nine years.

In the 2014–15 Season Glentoran won another Irish cup against [[Portadown F.C.|Portadown]] and the 2nd under Eddie Patterson. The game was played at The Oval because construction work at Windsor park had gone wrong and the Kop stand was deemed unstable and needed to be knocked down. The game finished 1–0 after a very wet afternoon in East Belfast.

After defeating Carrick Rangers 2–0 at home, Eddie Patterson was sacked. Former manager Roy Coyle took over for the next game as caretaker boss.

====Kernaghan (2015–2016)====
On 9 November 2015 [[Alan Kernaghan]] was appointed as Glentoran manager.<ref>{{cite news|url=http://www.glentoran.com/news/alan-kernaghan-appointed-new-manager|publisher=Glentoran|access-date=30 July 2016|title=Glentoran appoint new manager|archive-date=2 May 2019|archive-url=https://web.archive.org/web/20190502193329/https://www.glentoran.com/news/alan-kernaghan-appointed-new-manager|url-status=live}}</ref>
Kernaghan started with some promising results and managed to end the 2015/16 season in 5th Position.The Glens made several signings that summer in the hope of returning to the top 3 and returning to regular European football signing included former [[Ballymena United F.C.|Ballymena United]] goalkeeper Dwayne Nelson, [[Portadown F.C.|Portadown]] defender Ross Redman, resigned former player James Ferrin, Eric Foley from [[Galway United F.C.|Galway United]] and the signing of [[Rangers F.C.|Rangers]] Spanish legend [[Nacho Novo]] the Glens started the season inconsistently with two 1–0 wins against [[Dungannon Swifts F.C.|Dungannon Swifts]] and [[Portadown F.C.|Portadown]] and two defeats against [[Cliftonville F.C.|Cliftonville]] and struggling [[Carrick Rangers F.C.|Carrick Rangers]]. The pressure starting to mount on Kernaghan was severely increased when they were beaten 4–1 by [[Coleraine F.C.|Coleraine]] with many thinking the writing was on the wall for Kernaghan reign as manager and following a shock 3–2 League Cup defeat to Championship side [[Annagh United F.C.|Annagh United]], Kernaghan resigned as manager of Glentoran.

====Haveron (2016–2018)====
Gary Haveron became manager on 28 September 2016. In January 2017, Glentoran suffered a 2–1 [[Irish Cup]] 5th Round defeat at the Oval to fierce rivals [[Linfield F.C.|Linfield]] after extra time. Haveron was sacked by the club on 21 February 2018, following a 2–1 defeat to Ards at the Oval, with the club citing his performances were not good enough. The team was sixth in the league at that stage. Haveron did, however, lead the Glens to a 2017 Boxing Day victory, beating Linfield 2–1.

====McFall (2018–2019)====
Following Haverons dismissal, Glentoran reappointed [[Ronnie McFall]] as manager. A management reshuffle was announced which saw [[Gary Smyth]] become his assistant manager and [[Paul Leeman]] become a coach at the club. Kieran Harding was also an assistant to McFall. McFalls second spell proved unsuccessful. McFall left the club on 3 January 2019. At that point, the team were 9th in the league table, 5 points above the relegation zone.

====Smyth (2019)====
[[Gary Smyth]] became the caretaker manager of Glentoran on 3 January 2019.<ref>{{cite news|url=https://www.glentoran.com/news/ronnie-mcfall-resigns|publisher=Glentoran|date=3 January 2019|access-date=22 May 2019|title=Ronnie McFall resigns|archive-date=1 August 2020|archive-url=https://web.archive.org/web/20200801022414/https://www.glentoran.com/news/ronnie-mcfall-resigns|url-status=live}}</ref> His first match was a 4–1 defeat to Crusaders in the Irish Cup. [[Paul Leeman]] was his assistant, with Kieran Harding, who was assistant to McFall becoming a coach. The months after saw an improvement in form. Smyth, who did not hold the required coaching qualifications to lead the club into the playoffs or UEFA competition was replaced on 31 March 2019, the deadline day for UEFA Licensing by [[Mick McDermott]].<ref>{{cite news|url=https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/boss-gary-smyth-forced-out-as-glentoran-investors-move-in-37958887.html|publisher=Belfast Telegraph|author=Steven Beacom|date=28 March 2019|access-date=22 May 2019|title=Boss Gary Smyth forced out as investors move in|archive-date=29 March 2019|archive-url=https://web.archive.org/web/20190329122918/https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/boss-gary-smyth-forced-out-as-glentoran-investors-move-in-37958887.html|url-status=live}}</ref>

===New ownership and management (2019–)===
Mick McDermott became Glentoran manager as part of a deal involving new investment in the club, which was approved by 96% of shareholders at an EGM on 16 May 2019.<ref>{{cite news |date=16 May 2019 |title=Glentoran shareholders endorse investment proposal |url=https://www.glentoran.com/news/glentoran-shareholders-endorse-investment-proposal |url-status=live |archive-url=https://web.archive.org/web/20190518081030/https://www.glentoran.com/news/glentoran-shareholders-endorse-investment-proposal |archive-date=18 May 2019 |access-date=22 May 2019 |publisher=Glentoran}}</ref> Paul Millar returned as assistant manager, while Kieran Harding stayed on as coach. However, Gary Smyth and Paul Leeman were absent from the dugout in subsequent matches. On 21 May, the club announced Smyth’s departure, a decision that divided fans.<ref>{{cite news |date=21 May 2019 |title=Gary Smyth leaves |url=https://www.glentoran.com/news/gary-smyth |url-status=live |archive-url=https://web.archive.org/web/20190522150347/https://www.glentoran.com/news/gary-smyth |archive-date=22 May 2019 |access-date=22 May 2019 |publisher=Glentoran}}</ref> Leeman left two days later, despite both being offered their previous roles under the new management team.<ref>{{cite news |date=23 May 2019 |title=Paul Leeman leaves |url=https://www.glentoran.com/news/paul-leeman |url-status=live |archive-url=https://web.archive.org/web/20210123033941/https://www.glentoran.com/news/paul-leeman |archive-date=23 January 2021 |access-date=24 May 2019 |publisher=Glentoran}}</ref><ref>{{cite news |author=Steven Beacom |date=24 May 2019 |title=Glentoran Hero Number Two sacked by post as Leeman shares fate of Smyth |url=https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/glentoran-hero-number-two-sacked-by-post-as-leeman-shares-fate-of-smyth-38143297.html |url-status=live |archive-url=https://web.archive.org/web/20190526125803/https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/glentoran-hero-number-two-sacked-by-post-as-leeman-shares-fate-of-smyth-38143297.html |archive-date=26 May 2019 |access-date=24 May 2019 |work=Belfast Telegraph}}</ref>

On 4 February 2020, the Glentoran Chairman Stephen Henderson announced on behalf of the club, that it was finally free of external debt. Once having been £1.77 million in the red, the Board of Directors had cleared 80% of the debt across the decade and prior to the new investment in the club. A combination of the investor and the old board then settled the final remaining debt with the last outstanding creditor.<ref>{{cite news|title='Thank you doesn't seem enough': Glentoran debt-free thanks to efforts of true club family, says chairman|url=https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/thank-you-doesnt-seem-enough-glentoran-debt-free-thanks-to-efforts-of-true-club-family-says-chairman-38924860.html|work=Belfast Telegraph|author=Steven Beacom|date=4 February 2020|access-date=4 February 2020|archive-date=5 February 2020|archive-url=https://web.archive.org/web/20200205193652/https://www.belfasttelegraph.co.uk/sport/football/irish-league/glentoran/thank-you-doesnt-seem-enough-glentoran-debt-free-thanks-to-efforts-of-true-club-family-says-chairman-38924860.html|url-status=live}}</ref>

During McDermott's first full season in charge at the East Belfast club, he and Millar led the side to victory in the [[2019–20 Irish Cup|Irish Cup final]] on 31 July 2020. Glentoran defeated [[Ballymena United F.C.|Ballymena United]] 2–1 in the final after extra-time, with goals coming from Paul O'Neill and Robbie McDaid.<ref>{{cite news|url=https://www.glentoran.com/news/glentoran-2-1-ballymena-united|publisher=Glentoran|date=1 August 2020|access-date=1 August 2020|title=Glentoran 2-1 Ballymena United|archive-date=15 August 2020|archive-url=https://web.archive.org/web/20200815194743/https://www.glentoran.com/news/glentoran-2-1-ballymena-united|url-status=live}}</ref><ref>{{cite news|url=https://www.bbc.com/sport/live/football/53219657|title=As it happened: McDaid the hero as Glentoran lift the Irish Cup|date=31 July 2020|work=BBC Sport|access-date=8 September 2020|archive-date=1 August 2020|archive-url=https://web.archive.org/web/20200801040536/https://www.bbc.com/sport/live/football/53219657|url-status=live}}</ref>

McDermott was replaced by Rodney McAree on 17 January 2023. McAree managed Glentoran until the conclusion of the 2022/23 season, and guided them to European qualification. In June 2023, McAree departed Glentoran and was replaced by former [[Linfield F.C.|Linfield]] manager, [[Warren Feeney]]. 
This move was one in that was viewed controversially by many Glentoran supporters, with Feeney’s Linfield history and lack of managerial success being two of the biggest sticking points with Glens fans.<ref>{{cite news|title=Warren Feeney reacts to backlash after becoming Glentorans new manager|url=https://www.belfastlive.co.uk/sport/football/football-news/warren-feeney-reacts-backlash-after-27065938|work=Belfast Live Sport|author=Gareth Fullerton|date=6 June 2023|access-date=10 July 2023|archive-date=10 July 2023|archive-url=https://web.archive.org/web/20230710183657/https://www.belfastlive.co.uk/sport/football/football-news/warren-feeney-reacts-backlash-after-27065938|url-status=live}}</ref>

In July 2023, Glentoran were involved in a record-breaking Europa Conference League game against Gzira United from Malta. The first leg finished 2-2, with the second leg finishing 1-1. The tie then went to extra time and penalties, with Gzira winning 14–13 on penalties. This was the highest scoring penalty shoot-out ever in European competition.<ref>{{Cite news |date=2023-07-21 |title=Glens fans heartbroken by European defeat but adamant record-breaking match 'will never be forgotten' |language=en-GB |work=BelfastTelegraph.co.uk |url=https://www.belfasttelegraph.co.uk/sport/football/glens-fans-heartbroken-by-european-defeat-but-adamant-record-breaking-match-will-never-be-forgotten/a540672369.html |access-date=2023-08-01 |issn=0307-1235 |archive-date=1 August 2023 |archive-url=https://web.archive.org/web/20230801225453/https://www.belfasttelegraph.co.uk/sport/football/glens-fans-heartbroken-by-european-defeat-but-adamant-record-breaking-match-will-never-be-forgotten/a540672369.html |url-status=live }}</ref>

Feeney left the club by mutual consent on 15 March 2024, following a major backlash from most of the fans supporters clubs. [[Declan Devine]] was subsequently appointed as caretaker until the end of the season.

==Stadium and redevelopment==
{{more citations needed|section|date=October 2022}}
In March 2003, the club's board of directors advised the shareholders of Glentoran Recreation Company Ltd to sell the Oval to a property development holding company called Girona. To date, no new ground has materialised. A campaign waged by a group of volunteer supporters called Rest In East, was then set up to keep the club in east Belfast. The club's board of directors have suggested moving close to [[Comber]], well outside the city bounds of [[Belfast]], which the majority of supporters firmly oppose.

On 3 November 2005 a fans forum voted 417–0 in favour of forming Glentoran Community Trust, the first [[supporters' trust]] to be formed in Northern Ireland. It was officially formed on 15 May 2006 and registered with the Registry of Companies Belfast under the [[industrial and provident society|Industrial and Provident Societies Acts 1965–1978]]. The trust sits completely independent of the parent club, giving the ordinary non-shareholding supporter a voice.<ref>[http://www.irishfa.com/the-ifa/news/2215/ifa-head-of-community-relations-michael-boyd-welcomes-the-launch-of-glentoran-community-trust/ IFA] {{webarchive|url=https://web.archive.org/web/20070927204037/http://www.irishfa.com/the-ifa/news/2215/ifa-head-of-community-relations-michael-boyd-welcomes-the-launch-of-glentoran-community-trust/ |date=27 September 2007 }}</ref> On 29 January 2008, the GCT took another historic step, when one of its members, Stephen Henderson was elected to the board of directors by the shareholders of Glentoran FC, with the most votes ever gained in an election. This would prove an important step for the club during the financial crisis that would soon engulf it.

On 12 January 2011, a resolution was passed that gives the GCT two permanent board members.
Recently, Glentoran formed a strategic alliance partnership with Insaka AFC, the football club of the African Youth Diaspora in the Irish Republic by forming Insaka-Glentoran Football Academy at the same time becoming the first club on the island of Ireland to adopt a whole club approach to the [[Respect (UEFA campaign)|UEFA 'Respect']] campaign.

On 24 May 2016, supporters approved a board recommendation, at the club end of season AGM, to demolish and redevelop The Oval into a modern new community-based stadium, over alternative proposed moves to sites at Sydenham and Titanic Quarter. Funding will come from a £10million amount that has been on hold for the Glens under the Government's £110m sports grounds improvement programme that has led to the creation of the new Windsor Park and Ulster Rugby's Kingspan Stadium in tandem with redevelopment at venues across the country.

In March 2021 Glentoran submitted plans to redevelop [[The Oval (Belfast)|The Oval]], at cost of £8m to £10m.<ref>{{Cite web |date=2021-03-16 |title=Glens submit plan for Oval redevelopment |url=https://www.bbc.com/sport/football/56417287 |access-date=2023-04-26 |website=BBC Sport |language=en-GB |archive-date=26 April 2023 |archive-url=https://web.archive.org/web/20230426125702/https://www.bbc.com/sport/football/56417287 |url-status=live }}</ref> However the plans were suspended after the [[Northern Ireland Protocol|2022 collapse of Stormont]], as funding could not be secured.<ref>{{Cite news |title=Pour to add to 'seven figure' Glens investment |language=en-GB |work=BBC Sport |url=https://www.bbc.com/sport/football/63165096 |access-date=2023-04-26 |archive-date=26 April 2023 |archive-url=https://web.archive.org/web/20230426125825/https://www.bbc.com/sport/football/63165096 |url-status=live }}</ref>

==European record==
{{Main|Northern Irish football clubs in European competitions}}

===Overview===
{| class="wikitable" style="text-align:center;"
!Competition
!P
!W
!D
!L
!GF
!GA
|-
|align="left"| [[UEFA Champions League|European Cup / UEFA Champions League]]
| 28
| 3
| 7
| 18
| 20
| 59
|-
|align="left"| [[UEFA Europa League|Inter-Cities Fairs Cup / UEFA Cup / UEFA Europa League]]
| 50
| 5
| 9
| 36
| 31
| 122
|-
|align="left"| [[UEFA Europa Conference League]]
| 4
| 0
| 3
| 1
| 4
| 6
|-
|align="left"| ''[[UEFA Cup Winners' Cup|European Cup Winners' Cup / UEFA Cup Winners' Cup]]''
| 22
| 3
| 7
| 12
| 18
| 46
|-
| '''TOTAL'''
| '''104'''
| '''11'''
| '''26'''
| '''67'''
| '''73'''
| '''233'''
|}

===Matches===
{| class="wikitable" style="font-size:100%; text-align: center;"
! Season
! Competition
! Round
! Opponent
! Home
! Away
! [[Aggregate score|Aggregate]]
|-
| [[1962–63 Inter-Cities Fairs Cup|1962–63]]
| [[Inter-Cities Fairs Cup]]
| [[1962–63 Inter-Cities Fairs Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Spain}} [[Real Zaragoza]]
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|2–6
| style="background:#ffdddd;text-align:center;"|'''2–8'''
|-
| [[1963–64 Inter-Cities Fairs Cup|1963–64]]
| [[Inter-Cities Fairs Cup]]
| [[1963–64 Inter-Cities Fairs Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Scotland}} [[Partick Thistle F.C.|Partick Thistle]]
| style="background:#ffdddd;text-align:center;"|1–4
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''1–7'''
|-
| [[1964–65 European Cup|1964–65]]
| [[UEFA Champions League|European Cup]]
| [[1964–65 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Greece}} [[Panathinaikos F.C.|Panathinaikos]]
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ffdddd;text-align:center;"|2–3
| style="background:#ffdddd;text-align:center;"|'''4–5'''
|-
| [[1965–66 Inter-Cities Fairs Cup|1965–66]]
| [[Inter-Cities Fairs Cup]]
| [[1965–66 Inter-Cities Fairs Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Belgium}} [[Royal Antwerp F.C.|Royal Antwerp]]
| style="background:#ffffdd;text-align:center;"|3–3
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''3–4'''
|-
| [[1966–67 European Cup Winners' Cup|1966–67]]
| [[UEFA Cup Winners' Cup|European Cup Winners' Cup]]
| [[1966–67 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Scotland}} [[Rangers F.C.|Rangers]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–4
| style="background:#ffdddd;text-align:center;"|'''1–5'''
|-
| [[1967–68 European Cup|1967–68]]
| [[UEFA Champions League|European Cup]]
| [[1967–68 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Portugal}} [[Sport Lisboa e Benfica|Benfica]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffffdd;text-align:center;"|0–0
| style="background:#ffdddd;text-align:center;"|'''1–1 ([[Away goals rule|a]])'''
|-
| [[1968–69 European Cup|1968–69]]
| [[UEFA Champions League|European Cup]]
| [[1968–69 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Belgium}} [[Royal Sporting Club Anderlecht|Anderlecht]]
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''2–5'''
|-
| [[1969–70 Inter-Cities Fairs Cup|1969–70]]
| [[Inter-Cities Fairs Cup]]
| [[1969–70 Inter-Cities Fairs Cup#First qualifying round|1R]]
| align="left" |{{flagicon|England}} [[Arsenal F.C.|Arsenal]]
| style="background:#ddffdd;text-align:center;"|1–0
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[1970–71 European Cup|1970–71]]
| [[UEFA Champions League|European Cup]]
| [[1970–71 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Republic of Ireland}} [[Waterford United F.C.|Waterford]]
| style="background:#ffdddd;text-align:center;"|1–3
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''1–4'''
|-
| [[1971–72 UEFA Cup|1971–72]]
| [[UEFA Cup]]
| [[1971–72 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|FRG}} [[Eintracht Braunschweig]]
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|1–6
| style="background:#ffdddd;text-align:center;"|'''1–7'''
|-
| rowspan=3|[[1973–74 European Cup Winners' Cup|1973–74]]
| rowspan=3|[[European Cup Winners' Cup]]
| [[1973–74 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Romania}} [[Chimia Râmnicu Vâlcea]]
| style="background:#ddffdd;text-align:center;"|2–0
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ddffdd;text-align:center;"|'''4–2'''
|-
| [[1973–74 European Cup Winners' Cup#First round|2R]]
| align="left" |{{flagicon|Norway}} [[Sportsklubben Brann|Brann]]
| style="background:#ddffdd;text-align:center;"|3–1
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ddffdd;text-align:center;"|'''4–2'''
|-
| [[1973–74 European Cup Winners' Cup#Quarter-final|QF]]
| align="left" |{{flagicon|FRG}} [[Borussia Mönchengladbach]]
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|0–5
| style="background:#ffdddd;text-align:center;"|'''0–7'''
|-
| [[1975–76 UEFA Cup|1975–76]]
| [[UEFA Cup]]
| [[1975–76 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Netherlands}} [[AFC Ajax|Ajax]]
| style="background:#ffdddd;text-align:center;"|1–6
| style="background:#ffdddd;text-align:center;"|0–8
| style="background:#ffdddd;text-align:center;"|'''1–14'''
|-
| [[1976–77 UEFA Cup|1976–77]]
| [[UEFA Cup]]
| [[1976–77 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Switzerland}} [[FC Basel|Basel]]
| style="background:#ddffdd;text-align:center;"|3–2
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''3–5'''
|-
| rowspan=2|[[1977–78 European Cup|1977–78]]
| rowspan=2|[[UEFA Champions League|European Cup]]
| [[1977–78 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Iceland}} [[Knattspyrnufélagið Valur|Valur]]
| style="background:#ddffdd;text-align:center;"|2–0
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ddffdd;text-align:center;"|'''2–1'''
|-
| [[1977–78 UEFA Cup#First round|2R]]
| align="left" |{{flagicon|Italy}} [[Juventus FC|Juventus]]
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|0–5
| style="background:#ffdddd;text-align:center;"|'''0–6'''
|-
| [[1978–79 UEFA Cup|1978–79]]
| [[UEFA Cup]]
| [[1978–79 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Iceland}} [[Íþróttabandalag Vestmannaeyja|ÍBV]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffffdd;text-align:center;"|0–0
| style="background:#ffdddd;text-align:center;"|'''1–1 ([[Away goals rule|a]])'''
|-
| rowspan=2|[[1981–82 European Cup|1981–82]]
| rowspan=2|[[UEFA Champions League|European Cup]]
| [[1981–82 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Luxembourg}} [[FC Progrès Niederkorn|Progrès Niederkorn]]
| style="background:#ddffdd;text-align:center;"|4–0
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ddffdd;text-align:center;"|'''5–1'''
|-
| [[1981–82 European Cup#First round|2R]]
| align="left" |{{flagicon|Bulgaria}} [[PFC CSKA Sofia|CSKA Sofia]]
| style="background:#ddffdd;text-align:center;"|2–1 ([[Extra time|a.e.t.]])
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''2–3'''
|-
| [[1982–83 UEFA Cup|1982–83]]
| [[UEFA Cup]]
| [[1982–83 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Czechoslovakia}} [[FC Baník Ostrava|Baník Ostrava]]
| style="background:#ffdddd;text-align:center;"|1–3
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''1–4'''
|-
| [[1983–84 European Cup Winners' Cup|1983–84]]
| [[European Cup Winners' Cup]]
| [[1983–84 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|France}} [[Paris Saint-Germain F.C.|Paris Saint-Germain]]
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|'''2–4'''
|-
| [[1984–85 UEFA Cup|1984–85]]
| [[UEFA Cup]]
| [[1984–85 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Belgium}} [[Royal Standard de Liège|Standard Liège]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[1985–86 European Cup Winners' Cup|1985–86]]
| [[European Cup Winners' Cup]]
| [[1985–86 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Iceland}} [[Knattspyrnufélagið Fram|Fram]]
| style="background:#ddffdd;text-align:center;"|1–0
| style="background:#ffdddd;text-align:center;"|1–3
| style="background:#ffdddd;text-align:center;"|'''2–3'''
|-
| [[1986–87 European Cup Winners' Cup|1986–87]]
| [[European Cup Winners' Cup]]
| [[1986–87 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|DDR}} [[1. FC Lokomotive Leipzig|Lokomotive Leipzig]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[1987–88 European Cup Winners' Cup|1987–88]]
| [[European Cup Winners' Cup]]
| [[1987–88 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Finland}} [[Rovaniemen Palloseura|RoPS]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffffdd;text-align:center;"|0–0
| style="background:#ffdddd;text-align:center;"|'''1–1 ([[Away goals rule|a]])'''
|-
| [[1988–89 European Cup|1988–89]]
| [[UEFA Champions League|European Cup]]
| [[1988–89 European Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Soviet Union}} [[FC Spartak Moscow|Spartak Moscow]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[1989–90 UEFA Cup|1989–90]]
| [[UEFA Cup]]
| [[1989–90 UEFA Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Scotland}} [[Dundee United F.C.|Dundee United]]
| style="background:#ffdddd;text-align:center;"|1–3
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–5'''
|-
| [[1990–91 European Cup Winners' Cup|1990–91]]
| [[European Cup Winners' Cup]]
| [[1990–91 European Cup Winners' Cup#First qualifying round|1R]]
| align="left" |{{flagicon|Romania}} [[FC Steaua București|Steaua București]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–5
| style="background:#ffdddd;text-align:center;"|'''1–6'''
|-
| [[1992–93 UEFA Champions League|1992–93]]
| [[UEFA Champions League]]
| [[1992–93 UEFA Champions League#First round|1R]]
| align="left" |{{flagicon|France}} [[Olympique de Marseille|Marseille]]
| style="background:#ffdddd;text-align:center;"|0–5
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''0–8'''
|-
| [[1996–97 UEFA Cup Winners' Cup|1996–97]]
| [[UEFA Cup Winners' Cup]]
| [[1996–97 UEFA Cup Winners' Cup#Qualifying round|QR]]
| align="left" |{{flagicon|Czech Republic}} [[AC Sparta Prague|Sparta Prague]]
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|0–8
| style="background:#ffdddd;text-align:center;"|'''1–10'''
|-
| [[1998–99 UEFA Cup Winners' Cup|1998–99]]
| [[UEFA Cup Winners' Cup]]
| [[1998–99 UEFA Cup Winners' Cup#Qualifying round|QR]]
| align="left" |{{flagicon|Israel}} [[Maccabi Haifa F.C.|Maccabi Haifa]]
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[1999–00 UEFA Champions League|1999–00]]
| [[UEFA Champions League]]
| [[1999–00 UEFA Champions League#First qualifying round|1QR]]
| align="left" |{{flagicon|Bulgaria}} [[PFC Litex Lovech|Litex Lovech]]
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''0–5'''
|-
| [[2000–01 UEFA Cup|2000–01]]
| [[UEFA Cup]]
| [[2000–01 UEFA Cup#Qualifying round|QR]]
| align="left" |{{flagicon|Norway}} [[Lillestrøm Sportsklubb|Lillestrøm]]
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''0–4'''
|-
| [[2001–02 UEFA Cup|2001–02]]
| [[UEFA Cup]]
| [[2001–02 UEFA Cup#Qualifying round|QR]]
| align="left" |{{flagicon|Denmark}} [[FC Midtjylland|Midtjylland]]
| style="background:#ffdddd;text-align:center;"|0–4
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|'''1–5'''
|-
| [[2002–03 UEFA Cup|2002–03]]
| [[UEFA Cup]]
| [[2002–03 UEFA Cup#Qualifying round|QR]]
| align="left" |{{flagicon|Poland}} [[Wisła Kraków]]
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|0–4
| style="background:#ffdddd;text-align:center;"|'''0–6'''
|-
| [[2003–04 UEFA Champions League|2003–04]]
| [[UEFA Champions League]]
| [[2003–04 UEFA Champions League#First qualifying round|1QR]]
| align="left" |{{flagicon|Finland}} [[Helsingin Jalkapalloklubi|HJK]]
| style="background:#ffffdd;text-align:center;"|0–0
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''0–1'''
|-
| rowspan=2|[[2004–05 UEFA Cup|2004–05]]
| rowspan=2|[[UEFA Cup]]
| [[2004–05 UEFA Cup#First qualifying round|1QR]]
| align="left" |{{flagicon|Finland}} [[AC Allianssi|Allianssi]]
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ddffdd;text-align:center;"|2–1
| style="background:#ddffdd;text-align:center;"|'''4–3'''
|-
| [[2004–05 UEFA Cup#Second qualifying round|2QR]]
| align="left" |{{flagicon|Sweden}} [[IF Elfsborg|Elfsborg]]
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[2005–06 UEFA Champions League|2005–06]]
| [[UEFA Champions League]]
| [[2005–06 UEFA Champions League#First qualifying round|1QR]]
| align="left" |{{flagicon|Republic of Ireland}} [[Shelbourne F.C.|Shelbourne]]
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ffdddd;text-align:center;"|1–4
| style="background:#ffdddd;text-align:center;"|'''2–6'''
|-
| [[2006–07 UEFA Cup|2006–07]]
| [[UEFA Cup]]
| [[2006–07 UEFA Cup#First qualifying round|1QR]]
| align="left" |{{flagicon|Norway}} [[Sportsklubben Brann|Brann]]
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|0–1
| style="background:#ffdddd;text-align:center;"|'''0–2'''
|-
| [[2007–08 UEFA Cup|2007–08]]
| [[UEFA Cup]]
| [[2007–08 UEFA Cup#First qualifying round|1QR]]
| align="left" |{{flagicon|Sweden}} [[AIK Fotboll|AIK]]
| style="background:#ffdddd;text-align:center;"|0–5
| style="background:#ffdddd;text-align:center;"|0–4
| style="background:#ffdddd;text-align:center;"|'''0–9'''
|-
| [[2008–09 UEFA Cup|2008–09]]
| [[UEFA Cup]]
| [[2008–09 UEFA Cup#First qualifying round|1QR]]
| align="left" |{{flagicon|Latvia}} [[FK Liepājas Metalurgs|Liepājas Metalurgs]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| [[2009–10 UEFA Champions League|2009–10]]
| [[UEFA Champions League]]
| [[2009–10 UEFA Champions League#Second qualifying round|2QR]]
| align="left" |{{flagicon|Israel}} [[Maccabi Haifa F.C.|Maccabi Haifa]]
| style="background:#ffdddd;text-align:center;"|0–4
| style="background:#ffdddd;text-align:center;"|0–6
| style="background:#ffdddd;text-align:center;"|'''0–10'''
|-
| [[2010–11 UEFA Europa League|2010–11]]
| [[UEFA Europa League]]
| [[2010–11 UEFA Europa League#First qualifying round|1QR]]
| align="left" |{{flagicon|Iceland}} [[Knattspyrnufélag Reykjavíkur|KR Reykjavík]]
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''2–5'''
|-
| rowspan=2|[[2011–12 UEFA Europa League|2011–12]]
| rowspan=2|[[UEFA Europa League]]
| [[2011–12 UEFA Europa League#First qualifying round|1QR]]
| align="left" |{{flagicon|Macedonia}} [[FK Renova|Renova]]
| style="background:#ddffdd;text-align:center;"|2–1 ([[Extra time|a.e.t.]])
| style="background:#ffdddd;text-align:center;"|1–2
| style="background:#ddffdd;text-align:center;"| '''3–3''' {{pso|3–2}}
|-
| [[2011–12 UEFA Europa League#Second qualifying round|2QR]]
| align="left" |{{flagicon|Ukraine}} [[FC Vorskla Poltava|Vorskla Poltava]]
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''0–5'''
|-
| [[2013–14 UEFA Europa League|2013–14]]
| [[UEFA Europa League]]
| [[2013–14 UEFA Europa League#First qualifying round|1QR]]
| align="left" |{{flagicon|Iceland}} [[Knattspyrnufélag Reykjavíkur|KR Reykjavík]]
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffffdd;text-align:center;"|0–0
| style="background:#ffdddd;text-align:center;"|'''0–3'''
|-
| [[2015–16 UEFA Europa League|2015–16]]
| [[UEFA Europa League]]
| [[2015–16 UEFA Europa League#First qualifying round|1QR]]
| align="left" |{{flagicon|Slovakia}} [[MŠK Žilina|Žilina]]
| style="background:#ffdddd;text-align:center;"|1–4
| style="background:#ffdddd;text-align:center;"|0–3
| style="background:#ffdddd;text-align:center;"|'''1–7'''
|-
| rowspan=2| [[2020–21 UEFA Europa League|2020–21]]
| rowspan=2| [[UEFA Europa League]]
| [[2020–21 UEFA Europa League#Preliminary round|PR]]
| align="left" |{{flagicon|Faroe Islands}} [[Havnar Bóltfelag|HB Tórshavn]]
| style="background:#ddffdd;text-align:center;"|'''1–0'''
| {{n/a}}
| {{n/a}}
|-
| [[2020–21 UEFA Europa League#First qualifying round|1QR]]
| align="left" |{{flagicon|Scotland}} [[Motherwell F.C.|Motherwell]]
| {{n/a}}
| style="background:#ffdddd;text-align:center;"|'''1–5'''
| {{n/a}}
|-
| rowspan=1| [[2021–22 UEFA Europa Conference League|2021–22]]
| rowspan=1| [[UEFA Europa Conference League]]
| [[2021–22 UEFA Europa Conference League#First qualifying round|1QR]]
| align="left" |{{flagicon|Wales}} [[The New Saints F.C.|The New Saints]]
| style="background:#ffffdd;text-align:center;"|1–1
| style="background:#ffdddd;text-align:center;"|0–2
| style="background:#ffdddd;text-align:center;"|'''1–3'''
|-
| rowspan=1| [[2023–24 UEFA Europa Conference League|2023–24]]
| rowspan=1| [[UEFA Europa Conference League]]
| [[2023–24 UEFA Europa Conference League#First qualifying round|1QR]]
| align="left" |{{flagicon|Malta}} [[Gżira United F.C.|Gżira United]]
| style="background:#ffffdd;text-align:center;"|1–1 {{aet}}
| style="background:#ffffdd;text-align:center;"|2–2
| style="background:#ffdddd;text-align:center;"|'''3–3''' {{pso|13–14}}
|}
<ref>{{cite web|url=http://www.uefa.com/teamsandplayers/teams/club=50056/profile/history/index.html|title=Glentoran – UEFA.com|website=[[UEFA]]|access-date=6 December 2016|archive-date=28 August 2015|archive-url=https://web.archive.org/web/20150828084513/http://www.uefa.com/teamsandplayers/teams/club=50056/profile/history/index.html|url-status=dead}}</ref>

===UEFA ranking===
{{updated|5 July 2024|<ref>{{Cite web |title=Member associations – UEFA Coefficients – Club coefficients |url=https://www.uefa.com/nationalassociations/uefarankings/club/#/yr/2022 |url-status=live|archive-url=https://web.archive.org/web/20130113004406/http://www.uefa.com:80/memberassociations/uefarankings/club/ |archive-date=13 January 2013 }}</ref>}}

{| class="wikitable" style="text-align: center;"
|-
! Rank !! Team !! Points
|-
|339|| align="left" |{{flagicon|Belarus}} [[FC Torpedo-BelAZ Zhodino|Torpedo-BelAZ Zhodino]]||3.000
|-
|340|| align="left" |{{flagicon|Kosovo}} [[SC Gjilani|Gjilani]]||3.000
|- bgcolor="#ddffdd"
|341|| align="left" |{{flagicon|Northern Ireland}} '''Glentoran'''||3.000
|-
|342|| align="left" |{{flagicon|Ireland}} [[Sligo Rovers F.C.|Sligo Rovers]]||3.000
|-
|343|| align="left" |{{flagicon|Malta}} [[Floriana F.C.|Floriana]]||3.000
|}

==Players==
===Current squad===
{{Fs start}}
{{Fs player|no=1|nat=ENG|name=[[Andrew Mills (English footballer)|Andrew Mills]]|pos=GK}}
{{Fs player|no=2|nat=ENG|name=[[Ryan Cooney]]|pos=DF}}
{{Fs player|no=3|nat=NIR|name=Marcus Kane|pos=DF|other=[[Captain (association football)|captain]]}}
{{fs player|no=4|nat=ENG|name=Frankie Hvid|pos=DF}}
{{Fs player|no=5|nat=NIR|name=Josh Kelly|pos=MF}}
{{Fs player|no=6|nat=SCO|pos=MF|name=[[Joe Thomson (footballer)|Joe Thomson]]}}
{{Fs player|no=7|nat=IRL|name=[[Dylan Connolly]]|pos=FW}}
{{fs player|no=8|nat=NIR|name=[[Cammy Palmer]]|pos=MF}}
{{Fs player|no=9|nat=IRL|name=[[Patrick Hoban]]|pos=FW}}
{{Fs player|no=10|nat=NIR|name=[[Jordan Stewart (footballer, born 1995)|Jordan Stewart]]|pos=FW}}
{{Fs player|no=11|nat=ENG|name=Christie Pattisson|pos=FW}}
{{Fs player|no=14|nat=NIR|name=Nathaniel Ferris|pos=FW}}
{{Fs player|no=15|nat=IRL|name=Ciarán Coll|pos=DF}}
{{Fs player|no=16|nat=IRL|name=[[Shane McEleney]]|pos=DF}}
{{Fs player|no=17|nat=SCO|name=[[Liam Burt]]|pos=MF}}
{{Fs mid}}
{{fs player|no=18|nat=ENG|name=[[MJ Kamson-Kamara]]|pos=DF|other=On loan from [[Lincoln City F.C.|Lincoln City]]}}
{{Fs player|no=19|nat=ENG|name=[[David Fisher (footballer)|David Fisher]]|pos=FW}}
{{Fs player|no=20|nat=NIR|name=Daniel Larmour|pos=DF}}
{{fs player|no=21|nat=NIR|name=Charlie Lindsay|pos=MF}}
{{Fs player|no=22|nat=NIR|name=[[Danny Amos (footballer, born 1999)|Danny Amos]]|pos=DF}}
{{Fs player|no=23|nat=ENG|name=[[Billy Crellin]]|pos=GK}}
{{Fs player|no=24|nat=NIR|name=Owen O’Neill|pos=DF}}
{{Fs player|no=27|nat=NIR|name=James Singleton|pos=MF}}
{{Fs player|no=28|nat=NIR|name=Jonathan Russell|pos=DF}}
{{Fs player|no=30|nat=NIR|name=Jordan Jenkins|pos=FW}}
{{Fs player|no=31|nat=CAN|name=Milo Beimers|pos=GK}}
{{Fs player|no=34|nat=NIR|pos=DF|name=Cillian McCann}}
{{Fs player|no=35|nat=NIR|name=Cal Weatherup|pos=FW}}
{{Fs player|no=41|nat=NIR|pos=DF|name=Ciaran Rogers-Duffy}}
{{Fs player|no=44|nat=NIR|name=James Douglas|pos=MF}}
{{Fs player|no=45|nat=NIR|name=Jude Johnson|pos=FW}}
{{Fs player|no=47|nat=NIR|name=Casey Smyth|pos=FW}}
{{Fs end}}

===On loan===
{{fs start}}
{{Fs player|no=23|nat=NIR|name=Tony McElhone|pos=DF|other=On loan at [[Newington F.C.|Newington]] until 1 July 2026}}
{{Fs player|no=29|nat=NIR|name=Aaron Wightman|pos=MF|other=On loan at [[Portadown F.C.|Portadown]] until 1 January 2026}}
{{Fs player|no=33|nat=NIR|name=Lorcan Donnelly|pos=GK|other=On loan at [[Ballinamallard United F.C.|Ballinamallard Utd]] until 1 July 2026}}
{{Fs player|no=42|nat=NIR|pos=DF|name=Callan Farley|other=On loan at [[Warrenpoint Town F.C.|Warrenpoint Town]] until 1 January 2026}}
{{fs end}}

===Academy===
Glentoran runs the Glentoran Academy, to help promote football to younger players. It is the fastest growing football academy in the country and includes players, both boys and girls from the age of 4. The academy also includes a disability section and a Polish language section, where playing for the team requires attendance at training and at English language classes. In 2015–16, the club had 44 players representing Northern Ireland at different age groups, twice as many as any other club. In the summer of 2016, 4 more players left the academy to take up places at English professional clubs academies. The academy was set up in June 2008.<ref>{{cite news|url=http://glentoran.com/academy|publisher=Glentoran|access-date=30 July 2016|title=Glentoran Academy|archive-date=3 July 2016|archive-url=https://web.archive.org/web/20160703185253/http://www.glentoran.com/academy|url-status=live}}</ref>

==Managerial history==
:''See {{cl|Glentoran F.C. managers}}.''
List only counts permanent managers.
*{{flagicon|England}} [[Sam Jennings]] (1936–38)
*{{flagicon|England}} [[Louis Page (footballer, born 1899)|Louis Page]] (1939–40)
*{{flagicon|Northern Ireland}} [[Frank Thompson (footballer)|Frank Thompson]] (1945–47)
*{{flagicon|England}} [[Frank Grice]] (1948–55)
*{{flagicon|Scotland}} [[Jimmy McIntosh]] (1955–57)
*{{flagicon|Scotland}} [[Ken Chisholm]] (1958)
*{{flagicon|England}} [[Tommy Briggs]] (1959–60)
*{{flagicon|Scotland}} [[Alex Young (footballer born 1937)|Alex Young]] (1968)
*{{flagicon|Northern Ireland}} [[Peter McParland]] (1968–71)
*{{flagicon|Northern Ireland}} [[Kieran Dowd (football coach)|Kieran Dowd]] (1971/72)
*{{flagicon|Scotland}} [[Alex McCrae]] (1972)
*{{flagicon|England}} [[George Eastham|George Eastham Sr.]] (1972–74)
*{{flagicon|Northern Ireland}} [[Arthur Stewart (footballer)|Arthur Stewart]] (1977–78)
*{{flagicon|Northern Ireland}} [[Ronnie McFall]] (1979–84)
*{{flagicon|Northern Ireland}} [[Billy Johnston (footballer, born 1942)|Billy Johnston]] (1985–87)
*{{flagicon|Northern Ireland}} [[Tommy Jackson (footballer born 1946)|Tommy Jackson]] (1987–93)
*{{flagicon|Northern Ireland}} [[Robert Strain (footballer)|Robert Strain]] (1993/94)
*{{flagicon|Northern Ireland}} [[Tommy Cassidy]] (1994–97)
*{{flagicon|Northern Ireland}} [[Roy Coyle]] (1997–2006)
*{{flagicon|Northern Ireland}} [[Paul Millar (footballer, born 1966)|Paul Millar]] (2006–07)
*{{flagicon|Northern Ireland}} [[Alan McDonald (association football)|Alan McDonald]] (2007–10)
*{{flagicon|Scotland}} [[Scott Young (Scottish footballer)|Scott Young]] (2010–12)
*{{flagicon|Northern Ireland}} [[Eddie Patterson]] (26 February 2012 – 17 October 2015)
*{{flagicon|Republic of Ireland}} [[Alan Kernaghan]] (9 November 2015 – 30 August 2016)
*{{flagicon|Northern Ireland}} Gary Haveron (28 September 2016 – 21 February 2018)
*{{flagicon|Northern Ireland}} [[Ronnie McFall]] (22 February 2018 – 3 January 2019)
*{{flagicon|Northern Ireland}} [[Gary Smyth]] (3 January 2019 – 31 March 2019)
*{{flagicon|Northern Ireland}} [[Mick McDermott]] (1 April 2019 – 17 January 2023)
*{{flagicon|Northern Ireland}} [[Rodney McAree]] (17 January 2023 – 4 June 2023)
*{{flagicon|Northern Ireland}} [[Warren Feeney]] (5 June 2023 – 15 March 2024)
*{{flagicon|Northern Ireland}} [[Declan Devine]] (22 April 2024 –)

==Honours==
===Senior honours===
*'''[[IFA Premiership|Irish League/Irish Premier League/IFA Premiership]]: 23'''
**[[1893–94 Irish League|1893–94]], [[1896–97 Irish League|1896–97]], [[1904–05 Irish League|1904–05]], [[1911–12 Irish League|1911–12]], [[1912–13 Irish League|1912–13]], [[1920–21 Irish League|1920–21]], [[1924–25 Irish League|1924–25]], [[1930–31 Irish League|1930–31]], [[1950–51 Irish League|1950–51]], [[1952–53 Irish League|1952–53]], [[1963–64 Irish League|1963–64]], [[1966–67 Irish League|1966–67]], [[1967–68 Irish League|1967–68]], [[1969–70 Irish League|1969–70]], [[1971–72 Irish League|1971–72]], [[1976–77 Irish League|1976–77]], [[1980–81 Irish League|1980–81]], [[1987–88 Irish League|1987–88]], [[1991–92 Irish League|1991–92]], [[1998–99 Irish League|1998–99]], [[2002–03 Irish League|2002–03]], [[2004–05 Irish Premier League|2004–05]], [[2008–09 IFA Premiership|2008–09]] 
*'''[[Irish Cup]]: 23'''
**[[1913–14 Irish Cup|1913–14]], [[1916–17 Irish Cup|1916–17]], [[1920–21 Irish Cup|1920–21]], [[1931–32 Irish Cup|1931–32]], [[1932–33 Irish Cup|1932–33]], [[1934–35 Irish Cup|1934–35]], [[1950–51 Irish Cup|1950–51]], [[1965–66 Irish Cup|1965–66]], [[1972–73 Irish Cup|1972–73]], [[1982–83 Irish Cup|1982–83]], [[1984–85 Irish Cup|1984–85]], [[1985–86 Irish Cup|1985–86]], [[1986–87 Irish Cup|1986–87]], [[1987–88 Irish Cup|1987–88]], [[1989–90 Irish Cup|1989–90]], [[1995–96 Irish Cup|1995–96]], [[1997–98 Irish Cup|1997–98]], [[1999–2000 Irish Cup|1999–2000]], [[2000–01 Irish Cup|2000–01]], [[2003–04 Irish Cup|2003–04]], [[2012–13 Irish Cup|2012–13]], [[2014–15 Irish Cup|2014–15]], [[2019–20 Irish Cup|2019–20]]
*'''[[Irish League Cup]]: 7'''
**[[1988–89 Irish League Cup|1988–89]], [[1990–91 Irish League Cup|1990–91]], [[2000–01 Irish League Cup|2000–01]], [[2002–03 Irish League Cup|2002–03]], [[2004–05 Irish League Cup|2004–05]], [[2006–07 Irish League Cup|2006–07]], [[2009–10 Irish League Cup|2009–10]]
*'''[[County Antrim Shield]]: 27'''
**[[1900–01 County Antrim Shield|1900–01]], [[1901–02 County Antrim Shield|1901–02]], [[1910–11 County Antrim Shield|1910–11]], [[1915–16 County Antrim Shield|1915–16]], [[1917–18 County Antrim Shield|1917–18]], [[1920–21 County Antrim Shield|1920–21]], [[1924–25 County Antrim Shield|1924–25]], [[1930–31 County Antrim Shield|1930–31]], [[1939–40 County Antrim Shield|1939–40]], [[1940–41 County Antrim Shield|1940–41]], [[1943–44 County Antrim Shield|1943–44]], [[1949–50 County Antrim Shield|1949–50]], [[1951–52 County Antrim Shield|1951–52]], [[1956–57 County Antrim Shield|1956–57]], [[1967–68 County Antrim Shield|1967–68]], [[1970–71 County Antrim Shield|1970–71]], [[1977–78 County Antrim Shield|1977–78]], [[1984–85 County Antrim Shield|1984–85]], [[1986–87 County Antrim Shield|1986–87]], [[1989–90 County Antrim Shield|1989–90]], [[1998–99 County Antrim Shield|1998–99]], [[1999–2000 County Antrim Shield|1999–2000]], [[2001–02 County Antrim Shield|2001–02]], [[2002–03 County Antrim Shield|2002–03]], [[2007–08 County Antrim Shield|2007–08]], [[2010–11 County Antrim Shield|2010–11]], [[2024–25 County Antrim Shield|2024–25]]
*'''[[NIFL Charity Shield|Charity Shield]]: 2'''
**1992 <small>(shared)</small>, 2015
'''Defunct competitions'''
*'''[[Gold Cup (Northern Ireland)|Gold Cup]]: 14'''
**[[1916–17 Gold Cup|1916–17]], [[1951–52 Gold Cup|1951–52]], [[1960–61 Gold Cup|1960–61]], [[1962–63 Gold Cup|1962–63]], [[1966–67 Gold Cup|1966–67]], [[1976–77 Gold Cup|1976–77]], [[1977–78 Gold Cup|1977–78]], [[1982–83 Gold Cup|1982–83]], [[1986–87 Gold Cup|1986–87]], [[1991–92 Gold Cup|1991–92]], [[1994–95 Gold Cup|1994–95]], [[1998–99 Gold Cup|1998–99]], [[1999–2000 Gold Cup|1999–00]], [[2000–01 Gold Cup|2000–01]]
*'''[[City Cup (Northern Ireland)|City Cup]]: 15'''
**[[1896–97 City Cup|1896–97]], [[1898–99 City Cup|1898–99]], [[1910–11 City Cup|1910–11]], [[1911–12 City Cup|1911–12]], [[1913–14 City Cup|1913–14]], [[1914–15 City Cup|1914–15]], [[1931–32 City Cup|1931–32]], [[1950–51 City Cup|1950–51]], [[1952–53 City Cup|1952–53]], [[1956–57 City Cup|1956–57]], [[1964–65 City Cup|1964–65]], [[1966–67 City Cup|1966–67]], [[1969–70 City Cup|1969–70]], [[1972–73 City Cup|1972–73]], [[1974–75 City Cup|1974–75]]
*'''[[Ulster Cup]]: 9'''
**[[1950–51 Ulster Cup|1950–51]], [[1952–53 Ulster Cup|1952–53]], [[1966–67 Ulster Cup|1966–67]], [[1976–77 Ulster Cup|1976–77]], [[1981–82 Ulster Cup|1981–82]], [[1982–83 Ulster Cup|1982–83]], [[1983–84 Ulster Cup|1983–84]], [[1988–89 Ulster Cup|1988–89]], [[1989–90 Ulster Cup|1989–90]]
*'''[[Belfast Charity Cup]]: 8'''
**[[1895–96 Belfast Charity Cup|1895–96]], [[1901–02 Belfast Charity Cup|1901–02]], [[1906–07 Belfast Charity Cup|1906–07]], [[1910–11 Belfast Charity Cup|1910–11]], [[1922–23 Belfast Charity Cup|1922–23]], [[1924–25 Belfast Charity Cup|1924–25]], [[1925–26 Belfast Charity Cup|1925–26]] <small>(shared)</small>, [[1928–29 Belfast Charity Cup|1928–29]] <small>(shared)</small>
*'''[[Floodlit Cup (Northern Ireland)|Floodlit Cup]]: 2'''
**[[1987–88 Floodlit Cup|1987–88]], [[1989–90 Floodlit Cup|1989–90]]
*'''[[County Antrim Shield#Centenary Chalice|County Antrim Centenary Chalice]]: 1'''
**[[1987–88 County Antrim Centenary Chalice|1987–88]]
*'''[[City Cup (Northern Ireland)#Belfast City Cup|Belfast City Cup]]: 3'''<ref group="n" name="fn_1"/>
**[[1915–16 Belfast City Cup|1915–16]], [[1916–17 Belfast City Cup|1916–17]], [[1918–19 Belfast City Cup|1918–19]] <small>(shared)</small>
*'''[[Gold Cup (Northern Ireland)#Substitute Gold Cup|Substitute Gold Cup]]: 1'''<ref group="n" name="fn_2"/>
**[[1941–42 Substitute Gold Cup|1941–42]]

===All-Ireland honours===
*'''[[Blaxnit Cup]]: 1'''
**[[1972–73 Blaxnit Cup|1972–73]]
*'''[[Dublin and Belfast Inter-City Cup]]: 1'''
**[[1943–44 Dublin and Belfast Inter-City Cup|1943–44]]

===European honours===
*'''[[Vienna Cup - Friendly Competition (football)|Vienna Cup]]: 1 '''
**1913–14

===Intermediate honours===
''Honours won by Glentoran II''
*'''[[County Antrim Shield]]: 1'''
**[[1908–09 County Antrim Shield|1908–09]]
*'''[[NIFL Premier Intermediate League|Irish League B Division]]: 1'''
**1958–59
*'''[[Irish Intermediate League]]: 4'''
**1915–16, 1918–19, 1919–20, 1929–30
*'''[[IFA Reserve League|B Division Section 2/Reserve League]]: 8'''
**1985–86, 1986–87, 1989–90, 1992–93, 1995–96, 1997–98, 2001–02, 2002–03
*'''[[Irish Intermediate Cup]]: 9'''
**1893–94, 1897–98, 1908–09, 1912–13, 1915–16, 1917–18, 1930–31, 1940–41, 1961–62
*'''[[George Wilson Cup]]: 11'''
**1965–66, 1966–67, 1979–80, 1986–87, 2000–01, 2001–02, 2002–03, 2004–05, 2009–10, 2011–12, 2013–14
*'''[[Steel & Sons Cup]]: 13'''
**1904–05, 1908–09, 1910–11, 1914–15, 1918–19, 1932–33, 1937–38, 1957–58, 1965–66, 1966–67, 1989–90, 2000–01, 2001–02
*'''[[Irish Intermediate League#List of McElroy Cup winners|McElroy Cup]]: 4'''
**1915–16, 1917–18, 1933–34 <small>(shared)</small>, 1938–39

===Junior honours===
''Honours won by Glentoran II''
* '''Irish Junior League: 6'''
** 1896–97, 1897–98, 1901–02, 1904–05, 1908–09, 1909–10
*'''Irish Junior Cup: 1'''
** 1889–90

==Notes==
{{Reflist|group="n"|refs=
<ref group="n" name="fn_1">A temporary competition set up to replace the [[City Cup (Northern Ireland)|City Cup]] while it was suspended during [[World War I]].</ref>
<ref group="n" name="fn_2">A temporary competition set up to replace the [[Gold Cup (Northern Ireland)|Gold Cup]] while it was suspended during [[World War II]].</ref>
}}

==References==
{{Reflist}}

==See also==
* [[Glentoran Women]]

==External links==
{{commons category}}
* [http://www.glentoran.com/ Official Website] {{Webarchive|url=https://web.archive.org/web/20120602125019/http://www.glentoran.com/ |date=2 June 2012 }}
* [http://www.gctni.com/ Glentoran Community Trust – the first ever Supporters Trust in Northern Ireland] {{Webarchive|url=https://web.archive.org/web/20210119080011/http://www.gctni.com/ |date=19 January 2021 }}
* [http://www.ballymacgsc.com/ BallymacGSC.com – Popular Supporters Club Website & Away Bus Information] {{Webarchive|url=https://web.archive.org/web/20210124001409/http://www.ballymacgsc.com/ |date=24 January 2021 }}
* [https://web.archive.org/web/20121018082537/http://home.online.no/~smogols/ifcp/clubs/glentoran/clubglentoran.htm Glentoran Statistics and Results at the Irish Football Club Project]

{{Glentoran F.C.}}
{{NIFL league}}
{{Football in Northern Ireland}}
{{Authority control}}
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[[Category:Glentoran F.C.| ]]
[[Category:Association football clubs established in 1882]]
[[Category:United Soccer Association imported teams]]
[[Category:Association football clubs in Northern Ireland]]
[[Category:NIFL Premiership clubs]]
[[Category:Association football clubs in Belfast]]
[[Category:1882 establishments in Ireland]]
[[Category:Unrelegated association football clubs]]