When

When may refer to:
 * When?, one of the Five Ws, questions used in journalism
 * WHEN (AM), an Urban Adult Contemporary radio station in Syracuse, New York
 * WHEN-FM, the former call letters of radio station WWHT in Syracuse, New York
 * WHEN-TV, the former call letters of TV station WTVH in Syracuse, New York

Music

 * When (band), a musical project of Norwegian artist Lars Pedersen
 * When! Records, a UK record label whose artists include Rob Overseer

Albums

 * When (album), by Vincent Gallo, or the title song, 2001

Songs

 * "When" (The Kalin Twins song), 1958
 * "When" (Red Vincent Hurley song), the Irish entry for Eurovision 1976
 * "When" (Shania Twain song), 1998
 * "When", by Amanda Lear from Diamonds for Breakfast, 1980
 * "When", by Dodie from Intertwined, 2016
 * "When", by Kirk Franklin from Losing My Religion, 2015
 * "When", by Megadeth from The World Needs a Hero, 2001
 * "When", by Opeth from My Arms, Your Hearse, 1998
 * "When", by Perry Como, 1980
 * "When", by Rostam from Half-Light, 2017
 * "When?", by Spirit from Spirit of '76, 1975
 * "When", by Taproot from Welcome, 2002