Robert Greville, 2nd Baron Brooke (May 1607 – 4 March 1643) was a radical Puritan activist and leading member of the opposition to Charles I of England prior to the outbreak of the First English Civil War in August 1642. Appointed Parliamentarian commander in Staffordshire and Warwickshire, he was killed by a Royalist sniper at Lichfield on 2 March 1643.