General Thomas Clarke (died 26 October 1799) was a senior British Army officer.

[1] He was the son of Charles Clarke of Godmanchester, Huntingdonshire, Member of Parliament and Baron of the Exchequer.

He was a Captain in the short-lived Duke of Bedford's Foot (1745–46) which was raised to deal with the Jacobite rising of 1745.

In 1780 he was engaged in the successful Siege of Charleston, South Carolina under Sir Henry Clinton during the American War of Independence.

He was made Lieutenant-General in 1782, full General on 3 May 1796 and appointed Aide-de-Camp to the King in 1773.