In Greek mythology, Hyllus or Hyllas was a son of Heracles and Deianira and the husband of Iole.

Deianira, Deïanira, or Deianeira, also known as Dejanira, is a Calydonian princess in Greek mythology whose name translates as "man-destroyer" or "destroyer of her husband". She was the wife of Heracles and, in late Classical accounts, his unwitting murderer, killing him with the poisoned Shirt of Nessus. She is the main character in Sophocles' play Women of Trachis.