15

Fifteen or 15 may refer to:
 * 15 (number), the natural number following 14 and preceding 16
 * one of the years 15 BC, AD 15, 1915, 2015

Music

 * Fifteen (band), a punk rock band

Albums

 * 15 (Buckcherry album), 2005
 * 15 (Ani Lorak album), 2007
 * 15 (Phatfish album), 2008
 * 15 (mixtape), a 2018 mixtape by Bhad Bhabie


 * Fifteen (Green River Ordinance album), 2016
 * Fifteen (The Wailin' Jennys album), 2017
 * Fifteen, a 2012 album by Colin James

Songs

 * "Fifteen" (song), a 2008 song by Taylor Swift
 * "Fifteen", a song by Harry Belafonte from the album Love Is a Gentle Thing
 * "15", a song by Rilo Kiley from the album Under the Blacklight
 * "15", a song by Marilyn Manson from the album The High End of Low
 * "The 15th", a 1979 song by Wire

Other uses

 * Fifteen, Ohio, a community in the United States
 * Line 15, various metro lines
 * 15 (film), a 2003 Singaporean film
 * Fifteen (TV series), international release name of Hillside, a Canadian-American teen drama
 * Fifteen puzzle, a sliding puzzle
 * Fifteen (confection), a sweet traybake confection from Northern Ireland
 * Fifteen (novel), a 1956 juvenile fiction novel by Beverly Cleary
 * The Fifteen, the Jacobite rising of 1715 where the House of Stuart attempted to regain the throne of the United Kingdom.
 * First Aberdeen bus route 15
 * 15 Eunomia, an asteroid in the asteroid belt
 * 15 years old is the age of Quinceañera