Melaiyur Iii is a village in Mannargudi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Melaiyur Iii was 1,768 which includes 850 males and 918 females. Melaiyur Iii covers 360.99 ha area. Pincode of Melaiyur Iii is 614013.