OW or ow may refer to:
Owls are birds from the order Strigiformes, which includes about 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers adapted for silent flight.
Owen James Hart (May 7, 1965 – May 23, 1999) was a Canadian–American professional and amateur wrestler who worked for several promotions including Stampede Wrestling, New Japan Pro-Wrestling (NJPW), World Championship Wrestling (WCW), and the World Wrestling Federation (WWF).
Owl City is an American electronica project created in 2007 in Owatonna, Minnesota; it is one of several projects by singer, songwriter and multi-instrumentalist Adam Young.
Owen Columba Coyle (born 14 July 1966) is a professional football manager and former player who currently manages Indian Super League club Chennaiyin FC.
Owen Lee Hargreaves (born 20 January 1981) is a former footballer and current television pundit for BT Sport.
Owain ab Gruffydd, lord of Glyndyfrdwy (c. 1359 – c. 1415), or simply Owain Glyndŵr or Glyn Dŵr (pronounced [ˈoʊain ɡlɨ̞nˈduːr], anglicized to Owen Glendower), was a Welsh leader who instigated a fierce and long-running yet ultimately unsuccessful war of independence with the aim of ending English rule in Wales during the Late Middle Ages.