View source for October

{{short description|Tenth month in the Julian and Gregorian calendars}}
{{About|the month|}}
{{Redirect|Oct.||Oct (disambiguation){{!}}Oct}}
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{{Calendar}}
[[File:Maple leaf in fall.jpg|thumb|Red maple (''[[Acer rubrum]]'') leaf in October (Northern hemisphere).]]
[[File:10 October - Percent of global area at temperature records - Global warming - NOAA.svg |thumb |In recent decades, the number of warm temperature records in October has outpaced cold temperature records over a growing portion of Earth's surface.<ref>{{cite web |title=Mean Monthly Temperature Records Across the Globe |url=https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/202501/supplemental/page-3 |publisher=National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA) }} Link is an example for one month; for other months, change the "202501" in the preceding URL to '''yyyymm''', where '''yyyy''' is the four-digit year and '''mm''' is the two-digit month (01=January through 12=December)</ref>]]

'''October''' is the 10th month of the year in the [[Julian calendar|Julian]] and [[Gregorian calendar]]s. Its length is 31 days. The eighth month in the old [[Roman calendar#Legendary 10 month calendar|calendar of Romulus]] {{circa|750 BC}}, October retained its name (from [[Latin language|Latin]] and [[Greek language|Greek]] ''ôctō'' meaning "eight") after January and February were inserted into the calendar that had originally been created by the Romans. In [[Ancient Rome]], one of three [[Lapis manalis|Mundus patet]] would take place on October 5, [[Meditrinalia]] October 11, [[Augustalia]] on October 12, [[October Horse]] on October 15, and [[Armilustrium]] on October 19. These dates do not correspond to the modern Gregorian calendar. Among the [[Anglo-Saxon]]s, it was known as [[Winterfylleth]] (Ƿinterfylleþ), because at this full moon, winter was supposed to begin.<ref>{{Cite EB1911|wstitle=October}}</ref>

October is commonly associated with the season of [[autumn]] in parts of the [[Northern Hemisphere]], and [[Spring (Season)|spring]] in parts of the [[Southern Hemisphere]], where it is the seasonal equivalent to [[April]] in the Northern Hemisphere and vice versa.

== Symbols ==
[[File:Calendula January 2008-1 filtered.jpg|thumb|The [[calendula]]]]
[[File:Opal Armband 800pix.jpg|alt=An opal armband. Opal is the birthstone for October.|thumb|An [[opal]] armband. Opal is the birthstone for October.]][[File:Tourmaline cut.JPG|alt=Cut tourmaline|thumb|Cut [[tourmaline]]]]October's [[birthstone]]s are the [[tourmaline]] and [[opal]].<ref>{{cite web |url=http://www.jewelers.org/pdf/ConsEdcn/Gemstone%20Leaflets.pdf |title=Gemstone Leaflet |publisher=[[Jewelers of America]] |access-date=Jan 22, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120222185020/http://www.jewelers.org/pdf/ConsEdcn/Gemstone%20Leaflets.pdf |archive-date=2012-02-22 }}</ref> Its birth flower is the [[calendula]].<ref>{{cite web |author=SHG Resources |url=http://www.shgresources.com/gems/birthflowers/ |title=Birth Months, Flowers, and Gemstones |publisher=SHG Resources |access-date=2011-11-01 |archive-url=https://archive.today/20120911093344/http://www.shgresources.com/gems/birthflowers/ |archive-date=2012-09-11 |url-status=dead }}</ref> The [[zodiac]] signs are [[Libra (astrology)|Libra]] (until October 22) and [[Scorpio (astrology)|Scorpio]] (from October 23 onward).<ref>The Earth passes the junction of the signs at 22:59 UT/GMT October 22, 2020, and will pass it again at 04:51 UT/GMT October 23, 2021.</ref><ref name=astrology>{{citation |title=Astrology Calendar |url=https://www.yourzodiacsign.com/calendar/ |website=yourzodiacsign}}. Signs in UT/GMT for 1950–2030.</ref>

== Observances ==
''This list does not necessarily imply either official status or general observance.''
[[File:Beata Vergine Maria, Madonna del Rosario.jpg|thumb|Our Lady of the Most Holy Rosary, whose devotion and Feast are celebrated in October]]

=== Non-Gregorian: {{CURRENTISOYEAR}} dates ===
(All Baha'i, Islamic, and Jewish observances begin at the sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted.)
*[[List of observances set by the Bahá'í calendar]]
*[[List of observances set by the Chinese calendar]]
*[[List of observances set by the Hebrew calendar]]
*[[List of observances set by the Islamic calendar]]
*[[List of observances set by the Solar Hijri calendar]]

=== Month-long ===
*[[Black History Month]] in the [[United Kingdom]]
*In [[Catholic Church]] tradition, October is the Month of the Holy Rosary.<ref>{{cite web|url=http://www.newadvent.org/cathen/10542a.htm |title=CATHOLIC ENCYCLOPEDIA: Special Devotions For Months |publisher=Newadvent.org |access-date=2012-10-24}}</ref>
*[[National Breast Cancer Awareness Month|Breast Cancer Awareness Month]]
* Health Literacy Month<ref>{{cite web|url=http://www.healthliteracymonth.org/|title=Health Literacy Month – Finding the Right Words for Better Health|website=www.healthliteracymonth.org|access-date=2016-10-06|archive-date=2021-06-22|archive-url=https://web.archive.org/web/20210622041111/https://healthliteracymonth.org/|url-status=dead}}</ref> 
*[[Walk to school campaign#History of the campaign in Britain|International Walk to School Month]] 
* Medical Ultrasound Awareness Month<ref>{{cite web|url=http://www.sdms.org/resources/muam|title=SDMS Medical Ultrasound Awareness Month|website=www.sdms.org}}</ref> 
* [[Rett syndrome|Rett Syndrome]] Awareness Month<ref>{{cite web|url=http://www.rettsyndrome.org/get-involved/october-awareness-month|title=Home - Rettsyndrome.org|website=www.rettsyndrome.org|access-date=2016-10-07|archive-url=https://web.archive.org/web/20161010053152/http://www.rettsyndrome.org/get-involved/october-awareness-month|archive-date=2016-10-10|url-status=dead}}</ref>
* World Blindness Awareness Month<ref>[http://www.aao.org/aao/patients/eyemd/world_blindness.cfm] {{webarchive|url=https://web.archive.org/web/20070208072923/http://www.aao.org/aao/patients/eyemd/world_blindness.cfm|date=February 8, 2007}}</ref>
*[[International Menopause Society#Resources and publication|World Menopause Month]]
* [[World Vegetarian Day|Vegetarian Awareness Month]]<ref>{{cite web| url = https://foodandnutrition.org/blogs/stone-soup/celebrate-vegetarian-awareness-month/| title = Hultin G. Why Celebrate Vegetarian Awareness Month? Food & Nutrition, October 7, 2014, Accessed November 14, 2018| date = 13 October 2021| access-date = November 15, 2018| archive-date = July 16, 2023| archive-url = https://web.archive.org/web/20230716113117/https://foodandnutrition.org/blogs/stone-soup/celebrate-vegetarian-awareness-month/| url-status = dead}}</ref><ref>{{cite web| url = https://oldwayspt.org/blog/vegetarian-awareness-month-celebrating-meatless-mindfulness| title = Vegetarian Awareness Month: Celebrating Meatless Mindfulness, Oldways website, September 28, 2017, Accessed November 14, 2018| date = 28 September 2017}}</ref><ref>{{cite web| url = https://worldvegetarianday.navs-online.org/| title = World Vegetarian Day, October 1. North American Vegetarian Society (the North American WVD sponsor explains that "World Vegetarian Day &#91;on&#93; October 1st is the annual kick-off of Vegetarian Awareness Month", accessed November 14, 2018}}</ref><ref>{{cite web| url = https://veganoutreach.org/world-vegetarian-awareness-month/| title = Palmer S. World Vegetarian Awareness Month. Vegan Outreach website, October 2, 2017, Accessed November 14, 2018| date = 3 October 2017}}</ref><ref>{{cite web| url = https://www.fix.com/blog/national-vegetarian-awareness-month/| title = October is National Vegetarian Awareness Month. Fix.com. October 1, 2014, Accessed November 14, 2018| date = October 2014}}{{Dead link|date=November 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>{{cite web| url = https://www.fruitsandveggiesmorematters.org/celebrate-vegetarian-awareness-month| title = Celebrate Vegetarian Awareness Month. Fruits & Veggies: More Matters. Monday, October 14, 2013, at 4:00 am. Accessed November 14, 2018}}</ref><ref>{{Cite web |url=https://www.care2.com/greenliving/easy-ways-to-celebrate-vegetarian-awareness-month.html |title=Gerber J. 9 Easy Wasys to Celebrate Vegetarian Awareness Month. Care2. October 1, 2012. Accessed November 14, 2018 |access-date=November 15, 2018 |archive-date=November 15, 2018 |archive-url=https://web.archive.org/web/20181115112739/https://www.care2.com/greenliving/easy-ways-to-celebrate-vegetarian-awareness-month.html |url-status=dead }}</ref>

==== United States ====
The last two to three weeks in October (and, occasionally, the first week of November) are normally the only time of the year during which all of the [[Major professional sports leagues in the United States and Canada|"Big Four" major professional sports leagues]] in the U.S. and Canada schedule games; the [[National Basketball Association]] begins its preseason and about two weeks later starts the regular season, the [[National Hockey League]] is in the first month of its regular season, the [[National Football League]] is about halfway through its regular season, and [[Major League Baseball]] is in its postseason with the [[League Championship Series]] and [[World Series]]. Days on which all four leagues play are colloquially known as a [[sports equinox]].<ref>{{Cite web |date=2024-10-28 |title=Yahoo Sports AM: Happy Sports Equinox! |url=https://sports.yahoo.com/yahoo-sports-am-happy-sports-equinox-123422429.html |access-date=2024-10-28 |website=Yahoo Sports |language=en-US}}</ref>

*American Archives Month<ref>{{Cite news|url=https://www.archives.gov/news/topics/american-archives-month|title=American Archives Month|date=2017-06-22|work=National Archives|access-date=2018-09-25|language=en}}</ref>
*National Adopt a Shelter Dog Month<ref>{{cite web|url=http://www.aspca.org/adopt/adopt-a-shelter-dog-month| title=October is Adopt a Shelter Dog Month|publisher=ASPCA|access-date=2014-10-17}}</ref>
*[[National Arts & Humanities Month]] 
*National Bullying Prevention Month
*[[National Cyber Security Awareness Month]]<ref>{{cite web |url=http://www.staysafeonline.info/content/about-ncsam |title=About NCSAM |website=www.staysafeonline.info |archive-url=https://web.archive.org/web/20091005011514/http://www.staysafeonline.info/content/about-ncsam |archive-date=October 5, 2009 |access-date=October 7, 2009 |url-status=dead }}</ref>
*[[National Coalition Against Domestic Violence#Domestic Violence Awareness Month|National Domestic Violence Awareness Month]] 
*[[Filipino American History Month]] 
*[[Italian-American Heritage and Culture Month]] 
*[[Polish American Heritage Month]]
*[[National Work and Family Month]]

===== United States, health-related =====
* American Pharmacist Month<ref>{{cite web |url=http://www.pharmacist.com/aphm |archive-url=https://archive.today/20071011161022/http://www.pharmacist.com/aphm |url-status=dead |archive-date=October 11, 2007 |title=American Pharmacists Month 2011 |publisher=Pharmacist.com |access-date=2011-11-01 }}</ref>
*Celebrating All of October Dwarfism/Little People/Short Stature/Skeletal Dysplasia Awareness<ref>{{cite web|url=https://www.littlepeopleoftheworld.org/dwarfism-awareness|title=Little People of the World}}{{dead link|date=October 2021}}</ref>
*Dwarfism/Little People Awareness Month<ref>{{cite web |url=http://www.lpaonline.org/dwarfism-awareness-month-press-release |title=Little People of America |access-date=2014-09-30 |archive-date=2014-10-06 |archive-url=https://web.archive.org/web/20141006074930/http://www.lpaonline.org/dwarfism-awareness-month-press-release |url-status=dead }}</ref>
*Eczema Awareness Month <ref name="nationaleczema.org">{{cite web|url=http://nationaleczema.org/get-involved/eczema-awareness-month/|title=Eczema Awareness Month – National Eczema Association|work=National Eczema Association|access-date=2015-05-19|archive-date=2015-05-20|archive-url=https://web.archive.org/web/20150520184429/http://nationaleczema.org/get-involved/eczema-awareness-month/|url-status=dead}}</ref> 
* National [[Oral Hygiene|Dental Hygiene]] Month<ref>{{cite web|url=http://www.adha.org/ndhm/ |title=ADHA – October is National Dental Hygiene Month |publisher=Adha.org |access-date=2011-11-01}}</ref>
* National Healthy Lung Month<ref>{{cite web|url=https://www.healthstatus.com/health_blog/copd/healthy-lung-month/|title=Healthy Lung Month – Lung problems|date=5 October 2012}}</ref>
* National [[Infertility]] Awareness Month<ref>{{cite web |url=http://library.adoption.com/resources-and-information/observing-infertility-awareness-month/article/574/1.html |title=Observing Infertility Awareness Month |publisher=Library.adoption.com |access-date=2011-11-01 |archive-url=https://web.archive.org/web/20080828125101/http://library.adoption.com/resources-and-information/observing-infertility-awareness-month/article/574/1.html |archive-date=2008-08-28 |url-status=dead }}</ref>
* Liver Awareness Month<ref>{{cite web|url=http://www.liverfoundation.org/education/liverlowdown/ll1013/lam/|title=Liver Awareness Month|website=www.liverfoundation.org|date=4 August 2017|access-date=6 October 2016|archive-date=29 September 2016|archive-url=https://web.archive.org/web/20160929024939/http://www.liverfoundation.org/education/liverlowdown/ll1013/lam|url-status=dead}}</ref> 
* National [[Lupus Erythematosus]] Awareness Month<ref>[http://www.lupus.org/education/LAM_main.html] {{webarchive|url=https://web.archive.org/web/20071121102210/http://www.lupus.org/education/LAM_main.html|date=November 21, 2007}}</ref>
* National [[Physical Therapy]] Month<ref>[http://www.apta.org/AM/Template.cfm?Section=National_PT_Month&Template=/TaggedPage/TaggedPageDisplay.cfm&TPLID=155&ContentID=28220 APTA | National Physical Therapy Month]  {{webarchive|url=https://web.archive.org/web/20090105123101/http://www.apta.org/AM/Template.cfm?Section=National_PT_Month&Template=%2FTaggedPage%2FTaggedPageDisplay.cfm&TPLID=155&ContentID=28220 |date=January 5, 2009 }}</ref>
* National [[Spina Bifida]] Awareness Month<ref>{{cite web |url=http://www.sbaa.org/site/c.gpILKXOEJqG/b.2016945/k.2321/Spina_Bifida_Association_Web_site.htm |title=Spina Bifida Association – Spina Bifida Association |publisher=Sbaa.org |access-date=2011-11-01 |archive-url=https://web.archive.org/web/20071014011920/http://www.sbaa.org/site/c.gpILKXOEJqG/b.2016945/k.2321/Spina_Bifida_Association_Web_site.htm |archive-date=2007-10-14 |url-status=dead }}</ref>
* [[Sudden infant death syndrome|Sudden Infant Death Syndrome]] Awareness Month<ref>{{cite web|url=https://www.nichd.nih.gov/newsroom/resources/spotlight/102014-october-SIDS|title=October is SIDS Awareness Month|website=www.nichd.nih.gov|date=20 October 2014 }}</ref> (United States)

===== United States, culinary =====
* [[National Pizza Month]]<ref>{{cite web|url=http://pizza.com/news/national-pizza-month/ |title=National Pizza Month |publisher=Pizza.com |access-date=2012-10-24}}</ref>
* National [[Popcorn]] Poppin' Month<ref>{{cite web |url=http://www.popcorn.org/AboutUs/PopcornPoppinMonth/tabid/72/Default.aspx |title=Popcorn Poppin' Month |publisher=Popcorn.org |access-date=2012-10-24 |archive-date=2012-08-01 |archive-url=https://web.archive.org/web/20120801012613/http://www.popcorn.org/AboutUs/PopcornPoppinMonth/tabid/72/Default.aspx |url-status=dead }}</ref>
* National Pork Month<ref>{{cite web|title=October is National Pork Month|publisher=ThePigSite|url=http://www.thepigsite.com/swinenews/15806/octobers-national-pork-month|date=2007-10-02}}</ref>
* National Seafood Month<ref>{{cite web|url=http://www.nmfs.noaa.gov/stories/2017/10/national-seafood-month-2017.html|title=NOAA Fisheries Celebrates National Seafood Month|publisher=NOAA.gov|date=2017-10-01|access-date=2017-10-09}}</ref>

=== Movable dates ===
*[[Oktoberfest celebrations]] (varies globally based on area)
*[[Astronomy Day]]: October 1 
*[[World Cerebral Palsy Day]]: October 6
*[[World College Radio Day]]: October 7
*[[Earth Science Week]]: October 9–15
*See also [[Movable Western Christian observances]]
*See also [[Movable Eastern Christian observances]]

==== First Sunday ====
*[[Daylight saving time]] begins ([[Australia]])
*[[Father's Day]] ([[Luxembourg]])
*[[National Grandparents Day#Australia|Grandparents Day]] ([[Queensland]], Australia, [[United Kingdom]]) 
*[[Teachers' Day]] ([[Belarus]], [[Latvia]], [[Ukraine]])

==== First Monday ====
* [[Child Health Day]] ([[United States]]) 
* [[Children's Day]] ([[Chile]], [[Singapore]])
* [[Labour Day]] ([[Australian Capital Territory]], [[New South Wales]], [[South Australia]], [[Queensland]], Australia)
* [[Peat Cutting Monday]] ([[Falkland Islands]])
* [[Thanksgiving]] ([[Saint Lucia]])
* [[Australian Architecture Association|World Architecture Day]] 
* [[World Habitat Day]]

==== First Tuesday ====
*[[National Night Out]] ([[Florida]] and [[Texas]], United States)

==== First Wednesday ====
*[[Children's Day#Chile|Children's Day]] ([[Chile]])

==== First Thursday ====
*[[National Poetry Day]] (UK, Ireland)

==== First Friday ====
*[[Children's Day]] ([[Singapore]])
*[[Lee National Denim Day]] ([[United States]])
*[[World Smile Day]]

==== First full week ====
*[[Albuquerque International Balloon Fiesta]] ([[United States]])
*[[Mental Illness Awareness Week]] ([[United States]])

==== Second Sunday ====
*[[National Grandparents Day#Germany|National Grandparents Day]] ([[Germany]], [[Hong Kong]])

==== Second Monday ====
*[[Columbus Day]] ([[United States]])
**[[Indigenous Peoples' Day (United States)|Indigenous Peoples' Day]] (Parts of the United States)
**[[Native American Day]] ([[South Dakota]], United States)
*[[Fraternal Day]] ([[Alabama]], United States)
*[[Health and Sports Day]] ([[Japan]])
*[[Public holidays in Malawi|Mother's Day]] ([[Malawi]])
*[[Public holidays in Norfolk Island|Norfolk Island Agricultural Show Day]] ([[Norfolk Island]])
*[[Thanksgiving (Canada)]]
*[[National Day]] ([[Republic of China]])

==== Second Tuesday ====
*[[Ada Lovelace Day]]

==== Second Wednesday ====
*[[September Declaration|Policy Statement of Belgian Parliament]] ([[Belgium]])

==== Wednesday of second full week in October ====
*[[National Fossil Day]] ([[United States]])

==== Second Thursday ====
*[[World Sight Day]]

==== Second Friday ====
*[[Arbor Day]] ([[Namibia]]) 
*[[List of food days#Global or international|World Egg Day]]

==== Second Saturday ====
*[[Bird Day|International Migratory Bird Day]] ([[Mexico]], [[Central America|Central]] and [[South America]], and the [[Caribbean]])
*[[Home Movie Day]] ([[International observance]])
*[[Arbor Day#Mongolia|National Tree Planting Day]] ([[Mongolia]])

==== Week of October 10 ====
*[[Fiji Week]] ([[Fiji]])

==== Second Week of October ====
*[[Fire Prevention Week]] ([[Canada]], [[United States]])
**[[Fire Prevention Week|Fire Service Recognition Day]] ([[Canada]]), last day of Fire Prevention Week: 

==== Third Sunday ====
*[[Teacher's Day]] ([[Brazil]])
*[[Mother's Day]] ([[Argentina]])

==== Third Monday ====
*[[Heroes' Day]] ([[Jamaica]]) 
*[[Mother's Day]] ([[Argentina]])
*[[Nanomonestotse]] ([[Native Americans in the United States|Native American]] communities)
*[[Boss's Day]] (United States, Canada, Lithuania and Romania)

==== Third Thursday ====
*[[World Council of Credit Unions#International Credit Union Day|International Credit Union Day]]

==== Third Saturday ====
*[[Sweetest Day]] ([[United States]])

==== Fourth Monday ====
*[[Labour Day#New Zealand|Labour Day]] ([[New Zealand]])

==== Fourth Wednesday ====
*[[Children's Day]] ([[Australia]])

==== Fourth Friday ====
*[[List of food days#Global or international|Global Champagne Day]]

==== Fourth Saturday ====
*[[Children's Day]] ([[Malaysia]])
*[[USA Weekend#Make a Difference Day|Make a Difference Day]] ([[United States]])

==== Week of Fourth Wednesday ====
*[[Children's Day#Australia|Children's Week]] ([[Australia]])

==== Last Monday ====
*[[October Holiday]] ([[Ireland]])

==== Last Friday ====
*[[CanTeen|National Bandanna Day]] ([[Australia]])
*[[Nevada Day]] ([[Nevada]], United States) (though the state was actually admitted on October 31, 1864)
*[[Teacher's Day]] ([[Australia]]) (If the last Friday is on October 31, this holiday is moved to November 7)

==== Last Sunday ====
*[[Daylight saving time|European Summer Time]] ends
*[[National Grandparents Day#Australia|Grandparents Day]] ([[New South Wales]], Australia)
*[[Székely Autonomy Day]] ([[Romania]])<ref>{{cite news|url=https://transylvanianow.com/brussels-should-pay-attention-to-the-szeklers-day-of-szekler-autonomy/|title="Brussels should pay attention to the Szeklers" – Day of Szekler Autonomy|first=Attila|last=Szoó|newspaper=Transylvania Now|date=26 October 2020}}</ref>

=== Fixed ===
[[File:Les Très Riches Heures du duc de Berry octobre.jpg|right|thumb|October, from the ''[[Très Riches Heures du Duc de Berry]]'']]
[[File:Halloween Derry 2005.jpg|right|thumb|A shop in [[Derry]] decorated for [[Halloween]]]]
[[File:Pumpkins-2009.jpg|right|thumb|[[Halloween]] pumpkins]]
*[[October 1]]
**[[Armed Forces Day (South Korea)]]
**[[Children's Day]] ([[El Salvador]], [[Guatemala]], [[Sri Lanka]])
**[[Public holidays in Azerbaijan|Day of Prosecutors]] ([[Azerbaijan]])
**Continuance of [[List of Month-long observances#October|German-American Heritage Months]], which runs from September 15 – October 15<ref>{{cite web|url=http://www.umuc.edu/diversity/german.cfm|title=Diversity – UMUC|website=www.umuc.edu|access-date=2016-08-20|archive-date=2016-09-19|archive-url=https://web.archive.org/web/20160919112457/http://www.umuc.edu/diversity/german.cfm|url-status=dead}}</ref> ([[United States]])
**Continuance of [[National Hispanic Heritage Month]] which runs from September 15 – October 15 ([[United States]]),
**[[Public holidays in Russia#List of other public holidays, commemorative and professional days|Ground Forces Day]] ([[Russia]]) 
**[[Independence Day (Cyprus)]]
**[[Independence Day (Nigeria)]]
**[[Independence Day (Palau)]]
**[[Independence Day (Tuvalu)]]
**[[International Coffee Day]]
**[[International Day of Older Persons]]
**[[International Music Council|International Music Day]] 
**[[Lincolnshire Day]] ([[United Kingdom]])
**[[National Day of the People's Republic of China]] ([[People's Republic of China]])
**[[Pancasila Sanctity Day]] ([[Indonesia]])
**[[Teacher's Day (Uzbekistan)]]
**[[Unification Day (Cameroon)]]
**[[World Vegetarian Day]]
*[[October 2]]
**[[Batik Day]] ([[Indonesia]])
**[[Feast of the Guardian Angels]] 
***[[National Grandparents Day#Italy|National Grandparents Day]] ([[Italy]])
**[[Mahatma Gandhi|Gandhi]]'s birthday-related observances:
***[[Gandhi Jayanti]] ([[India]])
***[[International Day of Non-Violence]] 
***[[World Day for Farmed Animals]]
**[[Independence Day (Guinea)]]
*[[October 3]]
**[[Gaecheonjeol]] ([[South Korea]])
**[[German Unity Day]] ([[Germany]])
**[[Iraq#British Mandate of Mesopotamia and independent kingdom|National Day (Iraq)]]
**[[Morazán Day]] ([[Honduras]])
*[[October 4]]
** Feast of [[Saint Francis of Assisi]]
**[[List of food days#Sweden|Cinnamon Roll Day]] ([[Sweden]])
**[[Day of Peace and Reconciliation]] ([[Mozambique]])
**[[Independence Day (Lesotho)]]
**[[World Animal Day]] 
**The beginning of [[World Space Week]] (October 4–10)
*[[October 5]]
**[[Armed Forces Day#Indonesia|Armed Forces Day]] ([[Indonesia]])
**[[Constitution Day (Vanuatu)]]
**[[Engineer's Day]] ([[Bolivia]])
**[[International Day of No Prostitution]] 
**[[Republic Day (Portugal)]]
**[[Teachers' Day (Pakistan)]]
**[[Teachers' Day#By country|Teachers' Day (Russia)]]
**[[World Teachers' Day]] 
*[[October 6]]
**[[Day of Commemoration and National Mourning]] ([[Turkmenistan]])
**[[Dukla Pass Victims Day]] ([[Slovakia]])
**[[German-American Day]] ([[United States]])
**[[Memorial Day for the Martyrs of Arad]] ([[Hungary]])
**[[List of food days#October|National Noodle Day]] ([[United States]])
**[[Teachers' Day]] ([[Sri Lanka]])
**[[Yom Kippur War]] commemorations:
***[[Armed Forces Day (Egypt)]]
***[[Tishreen Liberation Day]] ([[Syria]])
*[[October 7]]
**[[Our Lady of the Rosary]]
**[[List of awareness days#October|International Trigeminal Neuralgia Awareness Day]]
**[[Teachers' Day]] ([[Laos]])
*[[October 8]]
**[[Indian Air Force|Air Force Day]] ([[India]])
**[[Arbor Day#Namibia|Arbor Day]] ([[Namibia]])
**[[National Independence Day]] ([[Croatia]])
**[[Peruvian Navy|Navy Day]] ([[Peru]])
*[[October 9]]
**[[Hangul Day]] (South Korea)
**[[Independence Day (Uganda)]]
**[[Independence of Guayaquil]] (Ecuador)
**[[Leif Erikson Day]] (United States, Iceland and Norway)
**[[National Day of Commemorating the Holocaust]] (Romania)
**[[Takayama Autumn Festival]] ([[Takayama, Gifu|Takayama]], Japan)
**[[World Post Day]] 
**[[Valencian Community Day]] (Spain)
*[[October 10]]
**[[Arbor Day]] ([[Poland]])
**[[Capital Liberation Day]] (Vietnam)
**[[Double Ten Day]] (Taiwan)
**[[Fiji Day]] (Fiji)
**[[Finnish Literature Day]] (Finland)
**[[Independence Day (Cuba)]]
**[[Party Foundation Day]] (North Korea)
**[[World Mental Health Day]] 
*[[October 11]]
**[[General Pulaski Memorial Day]] (United States)
**[[International Day of the Girl Child]] 
**[[Newspaper Carrier Day|International Newspaper Carrier Day]]
**[[National Coming Out Day]] (multinational, including United States, United Kingdom and Switzerland among others)
**[[Old Michaelmas Day]] ([[Celts|Celtic]])
**[[Public holidays in North Macedonia|Revolution Day (North Macedonia)]]
*[[October 12]]
**[[Children's Day]] ([[Brazil]])
**Discovery of America by [[Christopher Columbus|Columbus]]-related observances (''see also [[October 8]]''):
***[[Columbus Day (United States, Honduras)]]
***[[Día de la Hispanidad]] or [[Fiesta Nacional de España]], also [[Armed Forces Day]] (Spain)
***[[Día de la Raza]] ([[El Salvador]], [[Uruguay]])
***[[Día de la Resistencia Indígena]], "Day of Indigenous Resistance" ([[Venezuela]])
***[[Día de las Américas]] ([[Belize]])
***[[Día de las Culturas]], "Day of the Cultures" ([[Costa Rica]])
***[[Día del Respeto a la Diversidad Cultural]], "Day of respect for cultural diversity" ([[Argentina]])
**[[Discovery Day]] ([[The Bahamas]], [[Colombia]])
**[[Feast for Life]] of [[Aleister Crowley]], celebrated as "Crowleymas" ([[Thelema]])
**[[Fiesta Nacional de España]] (Spain)
**[[Freethought Day]]
**[[Independence Day (Equatorial Guinea)]], celebrates the independence of [[Equatorial Guinea]] from Spain in 1968.
**[[UN Spanish Language Day]] ([[United Nations]])
*[[October 13]]
**[[Public holidays in Azerbaijan|Azerbaijani Railway Day]] ([[Azerbaijan]])
**[[Doi taikomatsuri]] October 13–15 ([[Shikokuchūō, Ehime]], Japan)
**[[International Day for Natural Disaster Reduction]] 
**[[National Police Day (Thailand)]]
**[[Public holidays in Poland|Paramedics' Day]] (Poland)
**[[Rwagasore Day]] ([[Burundi]])
*[[October 14]]
**[[World Standards Day]]
*[[October 15]]
**[[Europa Donna|Breast Health Day]] (Europe)
**[[Public holidays in Tunisia|Evacuation Day]]  (Tunisia)
**[[Global Handwashing Day]] 
**[[Public holidays in Cambodia|King Father's Commemoration Day]] (Cambodia)
**[[National Latino AIDS Awareness Day]] (United States)
**[[Pregnancy and Infant Loss Remembrance Day]] (United States and Canada)
**[[Spirit Day]] ([[International observance]])
**[[Teachers' Day]] (Brazil)
**[[White Cane Safety Day]] (United States)
*[[October 16]]
**[[World Food Day]]
**[[Pope John Paul II Day]] (Poland)
**[[World Anaesthesia Day]]
*[[October 17]]
**[[Dessalines Day]] ([[Haiti]])
**[[International Day for the Eradication of Poverty]] 
**[[Loyalty Day (Argentina)]]
*[[October 18]]
** Feast of [[Saint Luke the Evangelist]]
**[[Alaska Day]] ([[Alaska]], United States)
**[[Day of Restoration of Independence (Azerbaijan)]]
**[[Necktie Day]] (Croatia)
**[[Persons Day]] (Canada)
**[[International Menopause Society#Resources and publications|World Menopause Day]]
*[[October 19]]
** [[Niue Constitution Act|Constitution Day]] ([[Niue]])
** [[Mother Teresa Day]] ([[Albania]])
*[[October 20]]
**[[Arbor Day#Czech Republic|Arbor Day]] (Czech Republic) 
**[[Heroes' Day (Kenya)]] 
**[[Revolution Day (Guatemala)]]
**[[Vietnamese Women's Day]] (Vietnam)
**[[World Osteoporosis Day]] 
**[[World Statistics Day]]
*[[October 21]]
**[[Apple Day]] (United Kingdom)
**[[Public holidays in Honduras|Armed Forces Day]] (Honduras)
**[[Public holidays in Egypt|Egyptian Naval Day]] (Egypt)
**[[Central Reserve Police Force|Indian Police Commemoration Day]] (India)
**[[International Day of the Nacho]] 
**[[National Nurses' Day]] (Thailand)
**[[Ndadaye Day]] (Burundi)
**[[Overseas Chinese Day]] (Taiwan)
**[[Trafalgar Day]] (the [[British Empire]] in the 19th and early 20th century)
*[[October 22]]
**[[Gustav Fechner|Fechner Day]] ([[International observance]]) 
**[[Caps lock#International Caps Lock Day|International Caps Lock Day]] 
**[[International Stuttering Awareness Day]] 
**[[Jidai Matsuri]] ([[Kyoto]], Japan)
**[[Public holidays in Indonesia|National Santri Day]] ([[Indonesia]])
**[[Wombat Day]] ([[Australia]])
*[[October 23]]
**[[Armed Forces Day#Brazil|Aviator's Day]] (Brazil) 
**[[Chulalongkorn Day]] (Thailand)
**[[Day of the Macedonian Revolutionary Struggle]] (North Macedonia)
**[[Liberation Day]] (Libya) 
**[[Mole Day]] ([[International observance]])
**[[National Day (Hungary)]]
**[[Public holidays in Cambodia|Paris Peace Agreement Day]] (Cambodia)
*[[October 24]]
**[[Azad Kashmir Day]] (Pakistan) 
**[[Public holidays in Russia#List of other public holidays, commemorative and professional days|Day of Special Forces of the Armed Forces]] (Russia)
**[[Food Day]] (United States)
**[[Independence Day (Zambia)]]
**[[Suez Day]] (Egypt)
**[[United Nations Day]] ([[International observance]])
**[[World Development Information Day]] 
**[[World Polio Day]] 
*[[October 25]]
**[[Armed Forces Day (Romania)]]
**[[Constitution Day (Lithuania)]]
**[[Public holidays in Russia|Customs Officer's Day]] (Russia) 
**[[National Day|Day of the Basque Country]] ([[Basque Country (autonomous community)|Basque Country]])
**[[Retrocession Day]] (Taiwan)
**[[Sovereignty Day (Slovenia)]]
**[[Thanksgiving Day (Grenada)]]
**[[The Hallowing of Nestorius]] ([[Nestorian Christianity]]) 
*[[October 26]]
**[[Accession Day (Jammu and Kashmir)]] 
**[[Angam Day]] ([[Public holidays in Nauru|Nauru]])
**[[Armed Forces Day (Benin)]]
**[[Intersex Awareness Day]] ([[International observance]])
**[[Culture of Austria#Public holidays|National Day]] ([[Austria]])
*[[October 27]]
**[[Black cat#Adoption and Black Cat Day|Black Cat Appreciation Day]] ([[United Kingdom]]) 
**[[Černová massacre|Černová Tragedy Day]] ([[Slovakia]])
**[[Flag Day (Greece)]]
**[[Independence Day (Saint Vincent and the Grenadines)]]
**[[Navy Day (United States)]] (unofficial, official date is October 13) 
**[[World Day for Audiovisual Heritage]]
*[[October 28]]
**[[Day of the Establishment of an Independent Czecho-Slovak State]] (Czech Republic and Slovakia)
**[[International Animation Day]] 
**[[Ohi Day]] (Greece, Cyprus)
**[[1891 Mino–Owari earthquake|Prefectural Earthquake Disaster Prevention Day]] ([[Gifu Prefecture]], Japan)
**[[Youth Pledge Day]] (Indonesia)
*[[October 29]]
**[[Coronation Day (Cambodia)]]
**[[Cyrus the Great Day]] (Iran)
**[[National Cat Day]] (United States) 
**[[Republic Day (Turkey)]] 
**[[World Stroke Day]]
*[[October 30]]
**[[Anniversary of the Declaration of the Slovak Nation]] (Slovakia)
**[[Day of Remembrance of the Victims of Political Repressions]] ([[former Soviet republics]], except Ukraine)
**[[Public holidays in Indonesia|Indonesian Banknote Day]] (Indonesia)
**[[International Orthopaedic Nurses Day]]
**[[Mischief Night]] (United States and Canada)
***[[Beggars Night]] (certain regions of the United States) 
***[[Devil's Night]] ([[Michigan]], United States)
**[[Thevar Jayanthi]] ([[Thevar|Thevar community]], India)
*[[October 31]]
**Start of [[Allhallowtide]] October 31 – November 6
**The first day of the [[Day of the Dead]], celebrated until November 2 ([[Mexico]])
**[[Día de la Canción Criolla]] ([[Peru]])
**Eve of Winter, the eve of the first day of winter in the Northern hemisphere:
***[[Allantide]] ([[Cornwall]], United Kingdom)
***[[Halloween]] ([[Halloween around the world|English-speaking countries, also in other locations]])
***[[Hop-tu-Naa]] ([[Isle of Man]])
***[[Samhain]] in the Northern Hemisphere, [[Beltane]] in the Southern Hemisphere; begins on sunset of October 31 ([[Gaelic calendar|Gaels]], [[Welsh people]] and [[Neopagan]] [[Wheel of the Year]])
**[[Scouts' Day#Founders.27 Days|Girl Scouts Founders Day]] ([[United States]])
**[[King Father's Birthday]] ([[Cambodia]])
**[[Rashtriya Ekta Diwas|National Unity Day]] ([[India]])
**[[Reformation Day]] (Slovenia, parts of Germany, Chile, El Salvador, Dominican Republic, [[Evangelical Churches]] and [[Lutheranism|Lutheran Churches]])
**[[Saci day]] ([[Brazil]])
**[[World Savings Day]]
**[[List of U.S. states by date of admission to the Union|Statehood Day]] [[Nevada]], United States

== Miscellaneous ==
*[[Eric Whitacre]] composed a piece based on this month, titled [[October (Concert Band)|''October'']].
*[[Neil Gaiman]] wrote a story personifying the month, titled "October in the Chair", for his 2006 collection ''[[Fragile Things]]''.
*[[Ray Bradbury]] published a collection of short stories titled ''[[The October Country]]'' in 1955.
* The song ''October doth before us go'' celebrates the progression of spring (from the perspective of the Southern Hemisphere).<ref>{{Cite web |url= https://www.youtube.com/watch?v=Ic78D0yLNUw  |archive-url=https://ghostarchive.org/varchive/youtube/20211211/Ic78D0yLNUw| archive-date=2021-12-11 |url-status=live|title= October doth before us go (feat. Leisha Stevens) |website= [[YouTube]] |date=31 October 2020 |access-date= 30 September 2021}}{{cbignore}}</ref><ref>{{Cite web |url= https://www.amazon.com/October-Before-feat-Leisha-Stevens/dp/B08MCLKQVH |title= October doth before us go (feat. Leisha Stevens) |website= Amazon |access-date= 30 September 2021}}</ref>

== References ==
{{Reflist|30em}}
== External links ==
{{sisterlinks|wikt=October|c=Category:October|n=Category:October|s=no|b=no|v=no|voy=no|species=no|d=Q124|m=no|mw=no}}
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[[Category:October| ]]
[[Category:Months|*10]]