Cotys I or Kotys I may refer to:
Kings of Thrace edit
- Cotys I (Odrysian), ruled 384–360 BC
- Cotys I (Sapaean), ruled until 48 BC
Other edit
- Tiberius Julius Cotys I (fl. 1st century), prince and Roman Client King of the Bosporan Kingdom
See also edit
- Kotys, Thracian goddess