The Harihareshwara Temple is a Hindu temple located in Harihar, Karnataka, India. It was constructed around 1223–1224 CE by Polalva, a commander and minister under King Vira Narasimha II of the Hoysala Empire.
Soma, a commander under King Narasimha III of the Hoysala dynasty, later made additions to the temple. The temple enshrines Harihara, a deity that combines aspects of the Hindu gods Vishnu and Shiva.
Under the reign of King Narasimha III of the Hoysala dynasty, the commander Soma made further additions to the temple. This temple is dedicated to Harihara, a deity symbolizing the fusion of the Hindu gods Vishnu and Shiva.
According to Hindu legend, a demon named Guha, also known as Guhasura, once ruled over a vast region encompassing Uchchangi Durga in the east, Govinahalu in the south, Mudanur in the west, and Airani in the north. This entire area was under his control, spreading fear and influence across the surrounding lands.