Lan Sang National Park (Thai: อุทยานแห่งชาติลานสาง) is in the Dawna Range, Tak Province, northern Thailand.

Established in 1979, it is an IUCN Category II protected area measuring 65,000 rai ~ 104 square kilometres (40 sq mi).

[1] On the Tak-Mae Sot Highway in Mueang Tak District, it became the country's 15th national park.

Lan Sang National Park covers an area of 65,000 rai.

Wild animals found are common wild pig, barking deer, Siamese big-headed turtle, serow, civet, Black-crested Bulbul, and flying lizards