Namasivayapuram is a village in Vilathikulam tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Namasivayapuram was 887 which includes 423 males and 464 females. Namasivayapuram covers 659.35 ha area. Pincode of Namasivayapuram is 628726.