Neyyadiappar Temple, Tillaistanam is a Hindu temple dedicated to Shiva located in the village of Thillaisthanam also known as Tillaisthanam or Thiruneithanam in Tamil Nadu, India. It is significant to the Hindu sect of Shaivism as one of the Saptasthanam, the seven temples associated with Aiyarappar temple in Thiruvaiyaru. Shiva is represented by the lingam in the form of Neyyadiappar. His consort Parvati is depicted as Piraisoodi Amman. The presiding deity is revered in the 7th century Tamil Shaiva canonical work, the Tevaram, written by Tamil saint poets known as the nayanars and classified as Paadal Petra Sthalam.