William Dubh MacLeod (Scottish Gaelic: Uilleam Dubh MacLeòid) (c. 1415–1480) is considered to be the 7th Chief of Clan MacLeod. He is thought to have been a younger son, yet because of the death of his elder brother, William Dubh succeeded his father, Iain Borb, in the year 1442. William Dubh was an old man when he was killed, leading his clan, at the Battle of Bloody Bay in 1480. He was the last MacLeod chief to be buried on the island of Iona. He was succeeded by his son, Alasdair Crotach.