Theyyar is a village in Vandavasi tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Theyyar was 3,397 which includes 1,691 males and 1,706 females. Theyyar covers 1335.55 ha area. Pincode of Theyyar is 604406.