Leto is a goddess in Greek mythology.
Leto or LETO may also refer to:
As a name: Leto (surname), a list of people so named Leto (rapper), French rapper part of the French hip hop duo PSO Thug Leto Atreides (disambiguation), three fictional characters in Frank Herbert's Dune universe Leto (plant), a synonym of the genus Helogyne of the family Asteraceae Leto (moth), a moth genus containing the single species Leto venus Leto (film), a 2018 Russian film
Places Leto, Florida, an unincorporated community Leto Regio, a geological feature on Phoebe, a moon of Saturn 68 Leto, an asteroid
Music Leto (song), a song by the Soviet rock band Kino
LETO: Madrid-Torrejón Airport's ICAO code