Xo or XO may refer to:
"XO" is a song by American singer Beyoncé from her fifth studio album, Beyoncé (2013). Columbia Records released the song as the lead contemporary hit radio single from the album in the US and Italy on December 16, 2013. Ryan Tedder co-wrote and co-produced "XO" with Terius "The-Dream" Nash and Beyoncé, with additional production handled by Chauncey "Hit-Boy" Hollis and HazeBanga Music.
Xorn is the alias of two fictional characters appearing in American comic books published by Marvel Comics.
XOXO is the first studio album by South Korean-Chinese boy band Exo, released on June 3, 2013 by S.M. Entertainment.
"XO Tour Llif3" (stylized as "XO TOUR Llif3" and pronounced "XO Tour Life") is a single by American rapper Lil Uzi Vert from his extended play Luv Is Rage 1.5 (2017) and debut album Luv Is Rage 2 (2017).
The XOR gate (sometimes EOR gate, or EXOR gate and pronounced as Exclusive OR gate) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd.
XO is the fourth studio album by American singer-songwriter Elliott Smith. It was recorded from 1997 to 1998 and released on August 25, 1998 by record label DreamWorks; Smith's first solo album on a major record label.
XOXO is an annual festival and conference held in Portland, Oregon that describes itself as "celebrating independently produced art and technology." XOXO was founded in 2012 by Andy Baio and Andy McMillan with funding from prepaid tickets and other contributions via Kickstarter, and it was described by the New York Times as an "experimental" conference.
The Xojo programming environment is developed and commercially marketed by Xojo, Inc. of Austin, Texas for software development targeting macOS, Microsoft Windows, Linux, iOS, the Web and Raspberry Pi.