Óttar

Óttar or Ottar may refer to:


 * Ottar, a Swedish king who appears in Beowulf as Ohthere
 * Óttar (mythology), in Norse mythology, the protégé of Freya, and the subject of the Lay of Hyndla
 * The dwarf Ótr is sometimes known as Óttarr
 * Ottar from Hålogaland, the Viking adventurer
 * Ottir Iarla (Earl Ottir), historical Norse-Gael of Waterford and probable settler of Cork
 * Jarl Ottar, earl of Götaland figuring in the Jomsvikinga Saga and in the Heimskringla
 * Óttarr svarti (Óttarr the Black), an 11th-century Icelandic court poet
 * Óttar of Dublin, 12th-century Norse-Gael king of Dublin

Given name
 * Ottar Brox (1932–), Norwegian politician for the Socialist Left Party
 * Ottar Dahl (1924–2011), Norwegian historian and historiographer
 * Ottar Fjærvoll (1914–1995), Norwegian politician from the Centre Party
 * Ottar Gjermundshaug (1925–1963), Norwegian skier who competed in the early 1950s
 * Ottar Grønvik (1916–2008), Norwegian philologist and runology scholar
 * Tor Ottar Karlsen (1950–), Norwegian politician for the Labour Party
 * Ottar Landfald (1919–2009), Norwegian politician for the Centre Party