Skelbo Castle is a ruined 14th century keep, located on the high shore at the mouth of Loch Fleet in the Highlands in Scotland.
The remaining wall is best preserved at the northern side of the castle.
In 1308 Robert the Bruce captured an earlier castle at the site belonging to the Sutherlands.
In 1529 the castle was bought by William Sutherland of Duffus.
Inhabited by Jacobites until the half of 18th century, the castle was abandoned at the end of the century.