Āyatāyana(Ayatayana) is one of the ṛṣivaṁśa (rishivamsa; genealogical or disciple-wise line of sages) belonging to the gotra (clan) of Maharṣi (Maharshi, Great Sage) Viśvāmitra (Viswamitra). Through the hereditary or disciple-wise line from Viśvāmitra, they are also known as Kauśika (Kaushika).