Ayutanāyin(Ayutanayin) was a distant forefather of the Pāṇḍava (Pandava)and Kaurava(s). He was the son born of the womb of Suyajñā (Suyajna), daughter of Prasenajit, and sided by the king Mahābhauma (Mahabhauma) of Puruvaṃśa (Puruvamsa; the Puru dynasty). He performed ten thousand, or ayuta number of Puruṣamedha Yajña (Purushamedha Yajna), so his name was Ayutanāyī —
ayutanāyī yaḥ puruṣamedhānāṃ ayutam
ānayat, tena asya ayutanāyitvam.
Ayutanāyī married Kāmyā (Kamya), daughter of Pṛthuśravā (Prithusrava). Their son was Akrodhana.