The name Cletus is a boy's name of Greek origin meaning "called forth". Cletus and is often added to user-created lists like Amazingly Horrible Names and discussed in our forums with posts like "A brother or sister for little Jack or Olivia".
From the experts:
Sometimes used as a short-form of Catholic Pope name Anacletus, Cletus is an ancient name that has not-yet found the popularity of Theodore, Leo, Atticus and Max. It perhaps suffers from its association to the yokel character in The Simpsons , but we think it's time for a reconsideration, given how well it fits into several current trends. Nickname Clete is cute as a button!