Coll Macdonald, 16th of Keppoch (c.1664-1729), was a Scottish clan chief and prominent Jacobite, active in both the 1715 Jacobite rebellion and Dundee's rising of 1689. He was chief of the Macdonalds of Keppoch, holding land in Lochaber. He is sometimes known as "Coll of the Cows" (Nam-bo) or "the Colonel of the Cows", a nickname apparently given by John Graham, 1st Viscount Dundee. Along with other chiefs of Keppoch he was also referred to by the Gaelic patronymic title Mac Mhic Raonuill, "the son of Ranald's son".