View source for XO

{{for|uses of

X0 (X followed by zero)|X0 (disambiguation)}}
{{wiktionary|XO|xo}}
'''Xo''' or '''XO''' may refer to:
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==Arts and entertainment==
* [[XO (group)]], British girl group
* [[XO (record label)]], founded by the Weeknd
* [[XO (Elliott Smith album)|''XO'' (Elliott Smith album)]], 1998
* [[XO (Leathermouth album)|''XO'' (Leathermouth album)]], 2009
* [[X-O Manowar]], a Valiant Comics superhero
* ''[[Super Robot Wars XO]]'', a 2006 tactical role-playing video game
* Xiomara "Xo" Villanueva, a character on ''[[Jane the Virgin]]'', an American satirical telenovela
<!-- Do not add the Geometry Dash level "xo" by Krmal, it is not mentioned in the Wikipedia page for Geometry Dash -->

===Songs=== 
* [[XO (song)|"XO" (song)]], 2013, by Beyoncé from her [[Beyoncé (album)|self-titled studio album]]
* "XO", 2005, by Fall Out Boy from the album ''[[From Under the Cork Tree]]''
* "XO", 2010, by Mike Posner from the album ''[[31 Minutes to Takeoff]]''
* "XO", 2015, by [[Eden (Irish musician)|The Eden Project]]
* "XO", 2022, by girl group [[Citizen Queen]]
* "XO (Only If You Say Yes)", by K-pop boy group [[Enhypen]]
* "X.O.", 1996, by Luniz from the film soundtrack ''[[Original Gangstas (soundtrack)|Original Gangstas]]''
* "XO / The Host", 2011, by the Weeknd from his third mixtape ''[[Echoes of Silence]]''

==Businesses==
* [[XO Communications]], a telecom company
* [[XO Group]], a media company

==Food and drink==
* [[XO sauce]], a spicy seafood-based dressing sauce
* XO (''extra old''), a [[cognac (drink)#Grades|grade of cognac]] liquor

==Science and technology==
* [[XO Telescope]] or its exo-planet survey
* [[OLPC XO]], a laptop produced by the One Laptop per Child association
* [[XO sex-determination system|XO sex determination system]], a chromosomal system used to designate sex of some species of insects, arachnids, and mammals
** XO, heterogametic male designation under this system
* [[Turner syndrome]], a genetic condition in which one of the sex chromosomes is absent
* [[Xanthine oxidase]], an enzyme that catalyzes the oxidation of hypoxanthine to xanthine
* [[Xylenol orange]], a chemical indicator for metal ions, used in titrations
* [[Crystal oscillator]] (deprecated abbreviation: XO), an electronic circuit

==Other uses==
* [[Executive officer]] or XO, as in a military or police force
* [[Hugs and kisses]] or XO
* [[LTE International Airways]]'s IATA airline code

==See also==
* [[Chi Omega]] ("ΧΩ"), a National Panhellenic Conference women's fraternity 
* [[Executive order (disambiguation)]], an edict by a member of the executive branch of a government
* [[Exo (disambiguation)]], multiple terms
* [[OX (disambiguation)]]
* [[Tic-tac-toe]], a game using X's and O's
* [[X's and O's (disambiguation)]]
* [[Xbox One]] (XBO), a video game console by Microsoft<!--(fails [[WP:DABACRO]])-->
* [[XOXO (disambiguation)]]

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