Kui Buri National Park is a national park of Thailand in the Tenasserim Hills in Prachuap Khiri Khan Province.

[1] The park, with an area of 605,625 rai ~ 969 square kilometres (374 sq mi)[2] covers parts of the Pran Buri, Sam Roi Yot, and Mueang Prachuap Khiri Khan Districts of Prachuap Khiri Khan Province.

Important trees are Dipterocarpus tuberculatus, Hopea odorata, Terminalia chebula, and different species of palms.

It is the only place in Thailand where sandalwood can be harvested for the cremation of royal family members.

Nine trees were cut down for the cremation of King Bhumibol Adulyadej.