Olakkachinnanur is a village in Sankari tehsil in district of Salem, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Olakkachinnanur was 1,391 which includes 716 males and 675 females. Olakkachinnanur covers 631.99 ha area. Pincode of Olakkachinnanur is 637102.