Rajapalayam is a town in the Indian state of Tamil Nadu. It is the largest municipality in the Virudhunagar district. Rajapalayam is located on the Madurai to Quilon National Highway at a distance of 562 km south of the state capital Chennai. The economy is primarily industrial with several mills for spinning and weaving. The town is known for its mango and the Rajapalayam breed of dogs.