Spencer Compton, 2nd Earl of Northampton (May 1601 – 19 March 1643), styled Lord Compton from 1618 to 1630, was an English soldier and politician who sat in the House of Commons from 1621 to 1622. He became a peer by writ of acceleration in 1626 and by inheritance in 1630. He fought in the Royalist army and was killed in action at the Battle of Hopton Heath.