Thrikodithanam Mahavishnu Temple is a Hindu temple dedicated to Vishnu and located in Thrikkodithanam, Kottayam District, Kerala, South India. Constructed in the Kerala style of architecture, the temple is glorified in the Divya Prabandha, the early medieval Tamil canon of the Azhwar saints from the 6th–9th centuries AD. It is one of the 108 Divyadesam dedicated to Krishna, an avatar of Vishnu, who is worshipped as MahaVishnu. The nearest railway station to the temple is located in Changanassery, while the nearest airport is Cochin International Airport.
It is one of the five ancient shrines in the Kottayam-Alappuzha-Pathanamthitta area of Kerala, connected with the legend of Mahabharata, where the five Pandavas are believed to have built one temple each; Thrichittatt Maha Vishnu Temple by Yudhishthira, Puliyur Mahavishnu Temple by Bheema, Aranmula Parthasarathy Temple by Arjuna, Thiruvanvandoor Mahavishnu Temple by Nakula and Thrikodithanam Mahavishnu Temple by Sahadeva.