Ūrṇanābhi(Urnanabhi) is one of the ṛṣivaṁśas(rishivamsa; the hereditary or disciple-wise line of sages) belonging to the gotra (clan) of Maharṣi (Maharshi) Atri . Thorugh the genealogical or disciple-wise line from Sage Atri, they are also known as Ātreya (Atreya).