Francis Leslie Ashton (24 June 1904 – July 1994) was a British writer known for his first novel Breaking of the Seals in 1946 and a kind of sequel Alas, That Great City from 1948. The two novels concern disasters involving objects orbiting the Earth in prehistoric times. In 1952 he co-wrote Wrong Side of the Moon, which concerns space travel.
Francis Leslie Ashton was born on 24 June 1904 in Chapel en le Frith, Derbyshire to Mary Alice and William Ashton. Ashton had two siblings, Elizabeth Bruce (1902-1994) and Stephen Thurstan Ashton (1907-1991).