Sa Kaeo (Thai:สระแก้ว) is a town (thesaban mueang) in Thailand, about 48 kilometers from the Thai-Cambodian border. It is the capital of the Sa Kaeo Province and the Sa Kaeo district. As of 2005, it had a population of 16,591. The town covers part of the tambon Sa Kaeo and Tha Kasem within the Sa Kaeo district.