Cletus \c-le-tus\ as a boy's name is pronounced KLEE-tus, KLAY-tus. It is of Greek origin, and the meaning of Cletus is "illustrious; called forth, invoked". A short form of Anacletus. Saint Cletus (first century) was elected Pope in AD 76.

Cletus has 9 variant forms: Anacletus, Cleo, Cleon, Clete, Cletis, Cletos, Cleytus, Kletos and Kletus.

Baby names that sound like Cletus are Clitus, Claudius and Glades.