| Francis Leslie Ashton | |
| Birth Date: | 1904 6, df=yes |
| Birth Place: | Chapel en le Frith, Derbyshire, England |
| Death Place: | Ely, Cambridgeshire, England |
Francis Leslie Ashton (24 June 1904 – July 1994) was an English 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 with his brother Stephen, which concerns space travel.