Doi Suthep-Pui National Park (Thai: อุทยานแห่งชาติดอยสุเทพ-ปุย) is located in Chiang Mai Province, in northern Thailand. Established in 1981, it is an IUCN Category II protected area measuring 261.06 square kilometres (100.80 sq mi).[1] The mountain Doi Suthep is within the park.