Unaiyur is a village in Thirumayam tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Unaiyur was 2,036 which includes 1,007 males and 1,029 females. Unaiyur covers 680.74 ha area. Pincode of Unaiyur is 622507.