Demonax (disambiguation)

Demonax (Δημώναξ, c. AD 70 – c. 170) was a Greek Cynic philosopher.

Demonax may also refer to:
 * Demonax (lawmaker) (fl. 550 BC), Arcadian lawmaker
 * Demonax (crater), lunar crater
 * Demonax (beetle), a genus of the longhorn beetles in the family Cerambycidae