Pieniny National Park is a protected area in Lesser Poland Voivodeship, southern Poland, in the heart of the Pieniny Mountains. Pieniny National Park is located in the most southern part of Poland, on the border with Slovakia. The Pieniny mountain range is divided into three parts: Pieniny Spiskie, Małe Pieniny and Pieniny Właściwe (in where is the park).
The Park’s area is 23.46 square kilometres (9.06 sq mi), of which 13.11 km² is forested. One-third (7.5 km²) is strictly protected. The Park has its head office in Krościenko nad Dunajcem. On the Slovak side of the mountains there is a park named Pieninský národný park.