Tudur Hen (English: Tudur the Elder) or Tudur ap Goronwy (died 11 October 1311) was a Welsh aristocrat and original founder of the House of Tudor. He was one of three sons of Goronwy ab Ednyfed who received lands from King Edward I of England. Nonetheless, he backed the rebellion of Madog ap Llywelyn, but afterwards swore allegiance to both Edward I and his son, Edward of Caernarfon. Tudur Hen was responsible for the restoration of the Franciscan friary at Bangor, where his body was later placed on 11 October 1311.