Clan MacDonald of Keppoch, also known as Clan MacDonell of Keppoch or Clan Ranald of Lochaber (Scottish Gaelic: Clann Dòmhnaill na Ceapaich [ˈkʰl̪ˠãũn̪ˠ ˈt̪õː.ɪʎ nə ˈkʲʰɛʰpɪç]), is a Highland Scottish clan and a branch of Clan Donald. The progenitor of the clan is Alistair Carrach MacDonald, 4th great-grandson of the warrior Somerled. The clan chief is traditionally designated as the “Son of Ranald’s son” (Scottish Gaelic: Mac Mhic Raonuill)