Iain Ciar MacLeod (Scottish Gaelic: Iain Ciar MacLeòid) (1330 – c. 1392) is considered to be 4th Chief of Clan MacLeod. He was the eldest son of, and is thought to have succeeded his father, Malcolm, in the years spanning 1360–1370. Clan tradition states that he was the most tyrannical of all MacLeod chiefs. His wife supposedly was as cruel as he was; she is said to have had two of her daughters buried alive in the dungeon of Dunvegan Castle when they attempted to leave the clan. Iain Ciar was killed in an ambush in about 1392. He was succeeded by his second and only surviving son, William Cleireach.