Frederick, Freddie or Fred Hart may refer to: Frederick Hart (politician) (1836–1915), member of the Queensland Legislative Council Frederick Hart (sculptor) (1943–1999), American sculptor Fred Hart (engineer) (1914–2008), British automotive engineer Fred J. Hart (businessman) (1888–1976), American farmer and businessman in the field of radionics Fred J. Hart (politician) (1908–1983), American businessman and politician in Illinois Freddie Hart (1926–2018), stage name of Frederick Segrest, American country musician and songwriter
See also Frederick Hartt (1914–1991), professor of history of art