Poloniny National Park (Slovak: Národný park Poloniny) is a national park in NE Slovakia at the borders with Poland and Ukraine borders, in the Bukovské vrchy mountain range of the Eastern Carpathians. It was created on 10/1/1997 with a protected area of 298.05 km and a buffer zone of 109.73 km2. Areas of the park were included in 2007 the Primeval Beech Forests of the Carpathians UNESCO World Heritage Site (extensions in 2011, 2017, 2021).