Craigleith is a small island in the Firth of Forth, off North Berwick in East Lothian, Scotland.

Its name comes from the Scottish Gaelic Creag liath meaning 'grey rock'.

It makes up the chain of islands near North Berwick along with Bass Rock, Fidra and The Lamb. Of the four islands it is the closest to the town's harbour. Like the other nearby islands, Craigleith is a bird colony. Divers often explore the area around the island.