Hywel ab Edwin

Hywel ap Edwin (died 1044) was king of Deheubarth in south Wales from 1033 to 1043.

Hywel was the son of Edwin ap Einion and great-grandson of Hywel Dda, law giver and a king of great influence in early medieval Wales. When the previous king of Deheubarth, Rhydderch ap Iestyn, (who had usurped the throne following the 1023 death of Llywelyn ap Seisyll), died in 1033, Hywel became king of Deheubarth, sharing the realm with his brother Maredudd ap Edwin. They were considered the heirs due to their seniority in descent from Hywel Dda. near the mouth of the River Towy, in which Hywel was killed.