Hajo is an ancient pilgrimage centre for three religions: Hindus, Buddhists, and Muslims. It lies on the banks of the Brahmaputra River, 24 km from the city of Guwahati in the Kamrup district of Assam, India. The area is dotted with a number of ancient temples as well as other sacred artifacts. The Hayagriva Madhava Mandir is the most famous temple of Hajo. Lesser known temples of Hajo like that of Ganesha was constructed during the reign of Ahom King Pramatta Singha in 1744 AD. The Kedareswara Temple, a Shiva temple, has inscription on the temple showing that it is of Rajeswar Singha period.
Hajo (Vidhan Sabha constituency) is one of the 126 assembly constituencies of Assam a north east state of India. Hajo is also part of Gauhati Lok Sabha constituency.