Frederick Escreet Smith (4 April 1919 – 15 May 2012) was a British author, best known for his 1956 novel 633 Squadron about a Second World War RAF Mosquito squadron undertaking a seemingly impossible mission to bomb a well-protected German factory at the head of a Norwegian fjord. The novel was made into a successful film in 1964. He also wrote the original 1951 story that the film Devil Doll (1964) is based on.