Ab Owain

Ab Owain is a Celtic surname from the Welsh ab Owain meaning "son of Owen" (Owen meaning 'noble')

List of people surnamed ab Owain

 * Cadwgan ab Owain (died 951), joint king of Glywysing in Wales, brother of Gruffydd
 * Einion ab Owain (died c. 984), prince of the House of Dinefwr, in Wales
 * Gruffydd ab Owain (died 935), joint king of Glywysing in Wales, brother of Cadwgan
 * Gwenwynwyn ab Owain (died c. 1216), king in central Wales
 * Hywel ab Owain (died 1043), king of a part of Glywysing in Wales
 * Ieuan Ddu ab Dafydd ab Owain (fl. 1440–1480), Welsh poet
 * Maredudd ab Owain (died 999), 10th-century king in Wales
 * Morgan Hen ab Owain (died 974), king of Gwent, Wales
 * Rhys ab Owain (died 1078), king of Deheubarth in southern Wales
 * Robin Llwyd ab Owain (born 1959), Welsh poet and author