Ettumanoor Mahadeva temple is an ancient Shiva temple in Kottayam, Kerala, India. Temple tradition has it that the Pandavas and the sage Vyasa had worshipped at this temple. The name of the place has its origin from the word manoor, which means "the land of deer." The temple is one of the major Shiva temples in Kerala, along with Vaikom Temple, Chengannur Mahadeva Temple, Kaduthruthy Mahadeva Temple, Ernakulam Shiva Temple, Vazhappally Maha Siva Temple and Vadakkunathan temple.