Sir Gruffydd Fychan ap Iorwerth Goch (c. 1150 – 1221) was a medieval Welsh Knight and Marcher Lord.
[1] His father was a minor Welsh prince named Iorwerth Goch ap Maredudd, Lord of Mochnant, of the Royal House of Mathrafal.
[9] Gruffydd succeeded to his father's estates in Kinnerley, and resided at Cae Howel in the parish of Kunaston.
[10] Gruffydd was the eldest son of Prince Iorwerth Goch and Maud de Manly.
He married second, Matilda le Strange (1170), daughter of Guy le Strange, with whom he had the children Hywel ap Gruffydd and Sir Madog ap Gruffydd of Sutton Maddock, Shropshire.