Ketheeswaram temple is an ancient Hindu temple in Mannar, Northern Province Sri Lanka. Overlooking the ancient period Tamil port towns of Manthai and Kudiramalai, the temple has lay in ruins, been restored, renovated and enlarged by various royals and devotees throughout its history. Tirukk?t?svaram is one of the Pancha Ishwarams dedicated to the Hindu deity Shiva and is venerated by Shaivas throughout the continent. Throughout its history, the temple has been administered and frequented by Sri Lankan Hindu Tamils. Its famous tank, the Palavi tank, is of ancient antiquity and was restored from the ruins. Tirukk?t?svaram is one of the 275 Paadal Petra Sthalams of Shiva glorified in the poems of the Tevaram.
Literary and inscriptional evidence of the post classical period (300BC-1500AD) attests to the upkeep of the temple during the ancient period by kings of the Pallava, Pandyan Dynasty and Chola dynasties who contributed to its development up to the late 16th century. In 1575, Tirukk?t?svaram was largely destroyed by Portuguese colonials, with Pujas terminating at the shrine in 1589. Following an appeal by Arumuka Navalar in 1872, the temple was rebuilt at its original site in 1903