Tipner is a residential district of Portsmouth, located on the north western corner of Portsea Island in southern England. It includes a housing estate, built during the 1930s, that used to function as married quarters for the Royal Navy, a yachting club, allotments, a primary school, The Harbour special school, and indoor and outdoor rifle ranges. There is a nearby sports centre at Alexandra Park. Tipner is bounded to the north and west by the M275 motorway and Tipner Lake.