Thennamanadu South is a village in Orathanadu tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thennamanadu South was 3,667 which includes 1,672 males and 1,995 females. Thennamanadu South covers 532.63 ha area. Pincode of Thennamanadu South is 614625.