Charles Stewart, 7th Earl of Traquair, FSA Scot FRSE (1746–1827) was an 18/19th century Scottish landowner.

He was born at Traquair House near Peebles in August 1744, the only son of John Stewart, 6th Earl of Traquair.

In 1798 he was elected a Fellow of the Royal Society of Edinburgh.

His proposers were Joseph Black, Dugald Stewart, and Alexander Keith of Dunnottar.

In August 1773 he married Mary Ravenscroft (d.1796), second daughter of George Ravenscoft of Wykeham Hall in Lincolnshire.