Leto Atreides is the name of three characters in the fictional Dune universe created by Frank Herbert:
- Leto Atreides I, father of Paul "Muad'Dib" Atreides
- Leto Atreides II the Elder, first son of Paul Atreides and Chani; (killed in his infancy by Glossu Rabban)
- Leto Atreides II the (God Emperor of Dune), son of Paul Atreides and twin to Ghanima