The Sree Vaikom Mahadeva Temple is a temple dedicated to the Hindu god Shiva in Vaikom, Kerala, India. The temple, along with the Ettumanoor Shiva Temple and the Kaduthuruthy Shiva Temple is considered a powerful place of Shiva. The belief is that if a devotee worships all the three temples before the Ucha puja, all his/her wishes are fulfilled. It is one of the oldest temples in Kerala and is famous for its Vaikom Ashtami festival.