Kui Buri National Park is a national park of Thailand in the Tenasserim Hills in Prachuap Khiri Khan Province. It was established as the 90th national park in March 1999.

Prachuap Khiri Khan is one of the western provinces of Thailand. It is in the northern part of the Malay Peninsula, some 240 km south of Bangkok. Neighboring provinces include Phetchaburi to the north