• Born date: 1912-01-01
• Born in: Presidencies and provinces of British India
• Death date: 1988-05-11
• Death in: Soviet Union

Harold Adrian Russell "Kim" Philby (1 January 1912 – 11 May 1988) was a high-ranking member of British intelligence who worked as a double agent before defecting to the Soviet Union in 1963. He served as both an NKVD and KGB operative.In 1963, Philby was revealed to be a member of the spy ring now known as the Cambridge Five, the other members of which were Donald Maclean, Guy Burgess, Anthony Blunt and, possibly, John Cairncross.