Melaiyur is a village in Sirkali tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Melaiyur was 5,883 which includes 2,963 males and 2,920 females. Melaiyur covers 616.27 ha area. Pincode of Melaiyur is 609107.