Mazhavarayanur is a village in Tirukkoyilur tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Mazhavarayanur was 1,986 which includes 1,019 males and 967 females. Mazhavarayanur covers 201.59 ha area. Pincode of Mazhavarayanur is 607203.