Owain ap Maredudd (Dyfed)

{{Short description|Welsh sovereign}}

{{hatnote|Not to be confused with Owen Tudor, also named Owain ap Maredudd in Welsh.}}{{More citations needed|date=June 2024}}

{{Use dmy dates|date=April 2022}}

Owain son of Maredudd ({{langx|cy|Owain ap Maredudd}}; died c. 810) was a king of Dyfed who ruled briefly at the beginning of the 9th century between his brother Rhain and his nephew Triffyn. His death was noted by the undated Annals of Wales. Phillimore's reconstruction places the entry at AD 810.

His father was Maredudd ap Tewdws.{{Citation needed|date=June 2024}} While no details about Owain's rule are available, it is likely that Dyfed was subject to Viking raids and that he was killed.{{Cite book |last=Ashley |first=Michael |title=British kings & queens: The complete biographical encyclopedia of the kings & queens of Great Britain |date=2000 |publisher=Barnes & Noble Books |isbn=9780760720349 |pages=138}}