Hew Campbell of Loudon (died 1561) was a Scottish landowner.
He was a son of Hugh Campbell of Loudon and Isobel Wallace.
[1] Gilbert Kennedy, 2nd Earl of Cassilis (Scottish Gaelic: Gille-Brigte Mac Cinnéide) was murdered at Prestwick by followers of Hew Campbell in August 1527, over a quarrel about the lands of Turnberry.
[2] The Gaelic song 'Òran Bagraidh' may relate to this event.
[3] Campbell married Elizabeth Stewart, a daughter of Matthew Stewart, 2nd Earl of Lennox and Elizabeth Hamilton.