In Greek mythology, Hyrtacus (; ) is an obscure character associated with the Trojan War. He was a comrade of King Priam of Troy. Hyrtacus married Arisbe, daughter of King Merops of Percote, after Priam had divorced her to marry Hecabe. Hyrtacus's son by Arisbe was named Asius and fought at Troy. In the Aeneid, Hyrtacus is credited with two more sons, Nisus and Hippocoon. Hyrtacus's own parentage is not given.