Cleitus, Clitus or Kleitos (Greek: Κλείτος) may refer to:

People with the name

• Cleitus the Black (c. 375–328 BC), Macedonian officer and friend of Alexander the Great, killed by the latter after an argument
• Cleitus the White (died 318 BC), Macedonian officer who rose to prominence after Alexander the Great's death
• Cleitus (Dardania) (fl. 335–295 BC), Illyrian king
• Kleitos Kyrou, (1921–2006), Greek poet and translator

Other uses

• Cleitus (mythology), multiple figures in Greek mythology
• Kleitos, Kozani, a village in the Kozani municipality, Greece