Ayaḥśiras (Ayahsiras) or Ayaḥśirā (Ayashsira) is one of the Asura(s) born of the womb of Danu, daughter of Dakṣa (Daksha), and sired by the Prime Father Kaśyapa (Kasyapa). In the age of the Pāṇḍava(s) (Pandava) and Kaurava(s), one king of the Kekaya kingdom was born as a partial incarnation of him. In the Upaparva called Aṃśāvataraṇa (Amsavatarana), in Mahābhārata (Mahasanku), Ayaḥśanku was one of the five Asura(s) of the ancient kalpa — who were born as kings of the Kekaya kingdom.