Chettiyapathu is a village in Tiruchendur tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Chettiyapathu was 4,479 which includes 2,221 males and 2,258 females. Chettiyapathu covers 971.02 ha area. Pincode of Chettiyapathu is 628203.