Tamplin is a surname. Notable people with the surname include:
Bill Tamplin (1917–1989), Welsh rugby union player Cliff Tamplin (1920–2006), Welsh cricketer Glenn Tamplin (born 1972), English businessman and football club chairman Henry Tamplin (1801–1867), English businessman Robin Tamplin (1928–2017), Irish rower Tessa Tamplin (born 2001), Australian soccer player
See also Tamplin v James, English contract law case