Halēsus (Halaesus and Alēsus), i, m., = Ἅλαισος. Son of Agamemnon and Clytemnestra or Brisēis, the founder of Falisci, Verg. A. 7, 724; 10, 352; 411; Ov. F. 4, 73; id. Am. 3, 13, 31.
— One of the Lapithae, Ov. M. 12, 462.
— A small river on the northern coast of Sicily, on which the town Halesa was situated, Col. poet. 10, 268; Sol. 5, 20.