The Thiruvanvandoor Mahavishnu Temple is a Hindu temple dedicated to Vishnu and located in Thiruvanvandoor, Alappuzha 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 Paambanaiappan. The nearest railway station to the temple is located in Chengannur, while the nearest airport is Trivandrum International Airport.