Sir Philip Jack Oppenheimer (29 October 1911 – 8 October 1995) was a British diamond dealer and racehorse owner. Philip Oppenheimer was born on 29 October 1911, the son of Otto Oppenheimer. He was educated at Harrow School and Jesus College, Cambridge, where he was captain of the boxing team. In 1935, he married Pamela Fenn Stirling. They had one son, Anthony Oppenheimer, and one daughter.