Pai (Thai: ปาย) is a small town in northern Thailand's Mae Hong Son Province, near the Myanmar border, about 146 km (91 mi) northwest of Chiang Mai on the northern route to Mae Hong Son. It lies on the Pai River. The town has thesaban tambon status and covers parts of the tambon Wiang Tai of Pai District. As of 2006, it had a population of 2,284.