Dafydd ap Gruffydd (11 July 1238 – 3 October 1283) was Prince of Wales from 11 December 1282 until his execution on 3 October 1283 on the orders of King Edward I of England. He was the last native Prince of Wales before the conquest of Wales by Edward I in 1283 and English rule in Wales that followed, until Owain Glyndŵr held the title during the Welsh Revolt of 1400–1415.