Cletus
- Ancient Greek language
- Cleitus (disambiguation)
- Clete Blakeman
- Clete Boyer
- Cletis (disambiguation)
- Cletus Andersson
- Cletus Avoka
- Cletus Bél
- Cletus Clark
- Cletus Dunn
- Cletus Hogg
- Cletus Ibeto
- Cletus Kasady
- Cletus Mendis
- Cletus P. Kurtzman
- Cletus Paul
- Cletus Seidu Dapilah
- Cletus Seldin
- Cletus Spuckler
- Cletus Wotorson
- Coreidae
- Deponia (video game)
- Fox NFL Sunday
- Good Times
- Grand Theft Auto V
- Helluva Boss
- List of Hazbin Hotel and Helluva Boss characters
- Pope Anacletus
- Resident Alien (TV series)
- Smokey and the Bandit
- The Nutty Professor (1996 film)