Popularly referred to as Appar, Thiru Navukkarasar was a saintly composer of the 6th century Tamil Nadu
. He is one among the three great Tevaram hymnists, others being Thiru Gnanasambandar
and Sundaramurthy Nayanar
. There is a shrine named Sorudaiya Eeswarar associated with Appar in Neelivananathar Temple of
in Tamil Nadu.