Auttami Manvantara was the third Manvantara among Manvantaras as per Hindu calendar.
The third manvantar was called Autam and derived its name from Autami Manu, who had ten sons – Isha, Urj, Tanuj, Shuchi, Shukra, Madhu, Madhav, Nabhasya, Nabh and Saha, Bhanusangyak was the prominent deity of this manvantar. Sage Urj and other six sages were the saptarishis then.
Each manvantara is ruled over by a Manu. In the present kalpa, six manvantaras have already passed and the names of the six Manus who ruled were Svayambhuva, Svarochisha, Uttama, Tamasa, Raivata and Chakshusha. The name of the seventh Manu, who rules over the seventh manvantara of the present kalpa, is Vaivasvata.
The titles of the seven great sages (saptarshi) as well as the tile of Indra change from manvantara to manvantara. The gods also change.