Vadathinallur is a village in Cheyyar tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Vadathinallur was 1,445 which includes 713 males and 732 females. Vadathinallur covers 783.62 ha area. Pincode of Vadathinallur is 604409.