Peneus is a river god in Greek mythology.

Peneus, Peneius or Pineios (Greek: Πηνειός) may also refer to: Pineios (Thessaly), a river in Thessaly, Greece Pineios (Peloponnese), a river in Peloponnese, Greece Pineios (municipality), a municipality in Elis, Western Greece Peneius (moon), moon of the asteroid 41 Daphne