Sir John de Fenton was a 14th-century Scottish noble.
He was the son of William de Fenton, Lord of Baikie and Beaufort and Cecilia Bisset, the co-heiress of John Bisset, Lord of Lovat.
[1] John succeeded to his father's estates.
[2] John campaigned with King Robert I of Scotland against William, Earl of Ross in 1308 and was a witness at the submission of William, Earl of Ross to King Robert I.
Fenton signed the Declaration of Arbroath in 1320 and attached his seal.