Paramarthalinga Thanulinga Nadar (17 February 1915 – 2 November 1988), also known simply as Thanulingam, was an Indian politician, Tamil Nadu Ellai Poratta Thyagi, and a staunch member of the now defunct Travancore Tamil Nadu Congress and would later emerge as a right-wing activist in the State.
He served as a Member of Parliament with the Indian National Congress.
In his later life, he served as the State President of the Hindu Munnani and played an active role in furthering Hindutva in the Indian State of Tamil Nadu in the 1980s.