Prachin Buri is one of the provinces of Thailand. The province is adjacent, with the provinces of Nakhon Ratchasima, Sa Kaeo, Chachoengsao and Nakhon Nayok. The capital city of the province is Prachin Buri city. The Prachin Buri is widely visited by the foreign tourists attracted by its lush green and high altitude mountains. The province has been divided into seven districts, 65 counties and more than 650 villages. Millingtonia hortensis is the symbolic flower of the province.

Prachin Buri is one of the renowned provinces of Thailand. Most of the area of the province is covered with long trees and high mountains. The province is divided into two main parts: the lower valley of the Prachin Buri, and lands with high plateaus and mountains of Dong Phaya Yen. In both areas there are two national parks: Khao Yai and the Larne Tab. Prachin Buri has seven districts or counties and main religion of the province is Buddhism.