Thervoy is a village in Gummidipoondi tehsil in district of Thiruvallur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thervoy was 3,122 which includes 1,558 males and 1,564 females. Thervoy covers 1350.56 ha area. Pincode of Thervoy is 601202.