Erineus or Erineos may refer to: a synonym for the rove beetles genus Clidicus Erineos (Ερινεός), a municipality in northeastern Achaea, Greece Erineus (city), one of the four Greek cities of the Doric Tetrapolis Erineus (Achaea), a town of ancient Achaea, Greece Erineus (Thessaly), a town of ancient Thessaly, Greece the ancient name for the river Erineo in Sicily, south of Syracuse