Ab Owain
Ab Owain is a Celtic surname from the Welsh ab Owain meaning "son of Owen"
List of people surnamed ab Owain
- Cadwgan ab Owain, joint king of Glywysing in Wales, brother of Gruffydd
- Einion ab Owain, prince of the House of Dinefwr, in Wales
- Gruffydd ab Owain, joint king of Glywysing in Wales, brother of Cadwgan
- Gwenwynwyn ab Owain, king in central Wales
- Hywel ab Owain, king of a part of Glywysing in Wales
- Ieuan Ddu ab Dafydd ab Owain, Welsh poet
- Maredudd ab Owain, 10th-century king in Wales
- Morgan Hen ab Owain, king of Gwent, Wales
- Rhys ab Owain, king of Deheubarth in southern Wales
- Robin Llwyd ab Owain, Welsh poet and author