Ohaiperaiyur is a village in Needamangalam tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ohaiperaiyur was 1,468 which includes 719 males and 749 females. Ohaiperaiyur covers 347.5 ha area. Pincode of Ohaiperaiyur is 610102.