Pazhaya Sreekanteswaram Temple or Old Sreekanteswaram Temple, situated in Puthenchantha, Thiruvananthapuram. It is one of the ancient Shiva temples in Kerala. According to Elamkulam Kunjan Pillai, a renowned historian, the synagogue existed in the 9th century AD. It is the original abode of the Lord of Sreekanteswaram Mahadeva Temple (new). The new temple is situated outside the "North Fort '' in Thiruvananthapuram.
The prime deities worshipped in the temple are Lord Shiva and Lord Krishna. The linga is believed to be on the samadhi of Sage Kanwa. Chettikulam, a pond nearby is referred to in Syanandura Purana Samuchaya and Anantapur Varnana as Kanva Theertha. This testifies the belief that Old Sreekanteswaram and Chettikulangara formed part of Kanwa Tapovana. The idol of Sri Krishna was installed to reduce the ferocity of Lord Shiva. The idols of Lord Ganesha and Serpent gods can also be seen in the temple premises. The deities face towards the east. Mritunjaya Homam, Mrityunjaya Archana, Jaladhara, Pinvilakku and Kuvala Mala Samarpanam are offerings made to Lord Shiva.
Maha Shivaratri and Thiruvathira are celebrated with grandeur in the temple. Thiruvathira star in Dhanurmasam is celebrated as the birthday of Lord Shiva. The main festival observed in Pazhaya Sreekanteswaram Temple is the Thiruvathira Mahotsavam.