Loader is a surname. Notable people with the surname include:
Christian Loader (born 1973), Welsh rugby union player Clive Loader (born 1953), RAF officer and Leicestershire Police and Crime Commissioner Colin Loader (1931–2021), New Zealand rugby union player Bill Loader (born 1944), Australian theologian Brian Loader (born 1958), British scholar and researcher Danyon Loader (born 1975), New Zealand swimmer Graham Loader, editor of Hob Nob Anyone? Jayne Loader (born 1951), American director and writer Peter Loader (1929–2011), English cricketer and umpire