Gudalaiyathur is a village in Kattumannarkoil tehsil in district of Cuddalore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Gudalaiyathur was 1,192 which includes 619 males and 573 females. Gudalaiyathur covers 344.81 ha area. Pincode of Gudalaiyathur is 608702.