Vishnuvardhana (r.1108–1152 CE) is an emperor of the Hoysala Empire in present day Indian state of Karnataka.

Originally a follower of Jainism and known as Bitti Deva, he comes under the influence of the Hindu philosopher Ramanujacharya, converts to Hindu Vaishnavism and takes the name Vishnuvardhana.

Vishnuvardhana takes the first steps in creating an independent Hoysala Empire in South India through a series of battles against his overlord, the Western Chalukya King Vikramaditya VI.

He also recovers Gangavadi province from the hegemony of the Chola empire.

The Hoysala territory gains the dignity of a kingdom starting from his rule.