Kadinamkulam Mahadeva temple is located at Kadinamkulam on the Alummoodu – Perumathura road in Thiruvananthapuram district, Kerala. The temple is around 8 km from Kaniyapuram. The shrine is dedicated to Shiva. Maha Shivratri is an important festival here and it is observed in Kumbha Masam (January – February).
The Shivling worshipped in the sanctum sanctorum is believed to have been retrieved from the sea.
The Upa Devatas worshipped in the temple are Yakshi, Nagam, Tampuran and Ganapathy. The temple has a circular sanctum sanctorum – vatta sreekovil. The temple faces west. A lake is situated in front of the shrine.
The temple is located in between sea and lake. In spite of the location near to sea, the temple well produces pure drinkable water.
The temple is of archeological significance as ancient writings are found on the walls of sanctum sanctorum, on the front side of nalambalam and near the pradakshina path. One of the writings belongs to 1261 CE. The writing states that the Prathishta in the temple was done on Thursday, Pooyam Nakshatra, Meenam 18 of Kollavarsham 390. The Prathishta was done under the direction of Keezhperoor Sri Viraraman Umayamma. She was the daughter of a local chieftain.