Brian Sidney Harper (born 19 June 1934), known professionally as Brian London, is an English retired heavyweight boxer. He was the British and Commonwealth heavyweight champion from 1958 to 1959, and twice challenged for the world heavyweight title, losing to Floyd Patterson in 1959 and Muhammad Ali in 1966, both times via knockout. He was one of a quartet of British boxers, with Henry Cooper, Joe Erskine, and Dick Richardson, who dominated the British boxing scene throughout the 1950s and 1960s. An orthodox fighter, London was 6 feet tall and fought at about 14 stone 9 pounds (205 pounds). His nicknames in the ring were "The British Bulldog" and "The Blackpool Rock".