Harihara II (died 31 August 1404) was an Emperor of the Vijayanagara Empire from the Sangama Dynasty.

During his reign, Harihara II continued to extend the empire's territory through fighting against the Reddis of Kondavidu for control of the Andhra between Nellore and Kalinga.

From the Reddis of Kondavidu, Harihara II conquered the Addanki and Srisailam areas as well as most of the territory between the peninsula to the south of the river Krishna, which would eventually lead to fights in Telangana with the Velamas of Rachakonda.

Harihara II reigned from the capital city of Vijayanagara whose ruins are now known as Hampi.

He built a tank for Gomatteshvara (Bahubali) and the stone temple of Kumthu-Jinanatha in Vijayanagara.