:Cynan ab Owain Gwynedd

{{Short description|Welsh prince}}

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Cynan ab Owain Gwynedd (died 1174) was an illegitimate son of Owain Gwynedd, a Prince of the ancient Kingdom of Gwynedd, Wales. He held the title "Lord of Meirionnydd".{{cite book |last=Bowen |first=Emrys George |date=1967 |title=History of Merioneth: The Middle Ages |volume=2 |url=https://www.google.com/books/edition/History_of_Merioneth/W_ELAQAAMAAJ |publisher=University of Wales Press |isbn=9780708317099 |access-date=January 26, 2025}}

In the battle for the throne of Gwynedd after the death of his father, he was ultimately driven into exile in 1173 by Gwynedd's new co-rulers Dafydd and Rhodri. After Cynan's death in 1174 his sons supported his nephew Llywelyn ab Iorwerth's successful bid for the throne in 1195.