Rhodri ap Hywel (died 964) was a King of Deheubarth in South Wales, and son of Hywel Dda.
On Hywel's death in 950 Deheubarth was shared between Rhodri and his two brothers, Edwin and Owain.
In 952 Iago and Ieuaf invaded the south, penetrating as far as Dyfed.
The sons of Hywel retaliated by invading the north in 966, reaching as far north as the Conwy valley before being defeated in a battle at Llanrwst and being obliged to retreat to Ceredigion.
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