Ham Polo Club is a Hurlingham Polo Association Polo Club situated in Richmond in the London Borough of Richmond upon Thames, southwest London, England. It is one of the oldest polo clubs in the United Kingdom and the last surviving club in London. The club occupies a location between Richmond Park and the River Thames overlooked by Ham House, eight miles from Hyde Park Corner. The club's facilities include three polo fields (two boarded), a stick and ball field, an exercise track, livery service, coaching and a clubhouse for the members with a restaurant and bar. Polo is played at Ham Polo Club between May and September. There are around 125 playing members at Ham and several hundred social members.
Ham Polo Club is the last remaining of the many clubs that existed as satellites to London's 'Big Three' – Ranelagh, Hurlingham and Roehampton. The club began life as the Ham Common Polo Club in 1926, with one full sized ground and two smaller rounds. The first ground was next door to Brown Gates House, Church Road, Ham Common, home of the first chairman, Loftus Storey.
The full-sized ground lay between Richmond Gates and Sheen and a regular coach there was Johnny Traill, the first Argentine 10 goaler, who lived at nearby Roehampton. Ham Common Polo Club, together with Stoke d'Abernon and clubs such as Worcester Park, Kingsbury and Crystal Palace, was ideal for Londoners who did not compete in the major tournaments at the 'Big Three' but who played for the fun of the game. The 1939 season was necessarily the last for the next six years.
Ham was revived in 1946 by William Francis Walsh (1907–1992), known universally as Billy. On returning from service in the Army Billy found that Capt. Tom Brigg, the owner of the stables where he had worked, had died and the stables were on the market. Using his gratuity Walsh bought the stables and revived Ham Polo Club under HPA rules. It is widely believed that Lord Cowdray, Arthur Lucas and Billy Walsh were the trio who rescued polo in the United Kingdom after the war.