Cornutus (Ancient Greek: Κορνοῦτος) may refer to:
- Lucius Annaeus Cornutus (fl. c. 60 AD), a Stoic philosopher of ancient Rome
- Cornutus (plural: cornuti), a part of the aedeagus of the male Lepidoptera genitalia (butterflies and moths)
Cornutus (Ancient Greek: Κορνοῦτος) may refer to: