Jayasimha (IAST: Jayasiṃha) was the first ruler of the Chalukya dynasty of Vatapi (modern Badami) in present-day India.
[3] The Mahakuta inscription eulogizes Jayasimha as "the very receptacle of brilliance, energy, valour, memory, intellect, splendour, polity and refinement."
The Chalukya inscriptions and coins are somewhat similar in style to those of the Kadambas, who preceded them in the Deccan region.
Another possibility is that Jayasimha assumed sovereignty after the defeat of his Rashtrakuta overlords by the Nalas and the Mauryas of Konkana, and then repulsed a Kadamba invasion.
[5] An inscription of the early Rashtrakuta king Abhimanyu records the grant of the Undikavatika village to the Shaivite ascetic Jatabhara in the presence of Jayasimha, the commander of the Harivatsa fort.