Frederick John Harris (4 July 1937 – 1 April 1965) (known as John Harris) was a South African schoolteacher and anti-apartheid campaigner who turned to terrorism and was executed after a bomb attack on a railway station. He was Chairman of SANROC (the South African Non Racial Olympic Committee), which in 1964 petitioned the International Olympic Committee to have South Africa excluded from the Olympics for fielding a white-only team. After being arrested for his political activities, he became a member of the African Resistance Movement (ARM).