Ranong (Thai: ระนอง) is a town (thesaban mueang) in southern Thailand, capital of the Ranong Province and the Mueang Ranong District. The town covers completely the area of the tambon Khao Niwet (เขานิเวศน์). As of 2005, it had a population of 16,163. Ranong lies 586 km south-southwest of Bangkok by road.