Namtok Chat Trakan National Park is a national park located in Phitsanulok Province of Thailand, established in 1987. It encompasses a substantial portion of Amphoe Chat Trakan.
Most of the park is mountains covered with evergreen forest. The source of several rivers is within the park, including the Khwae Noi River and its tributary the Phak River. The area of the park is part of the Luang Prabang montane rain forests ecoregion.
The Pakrong Waterfall, a.k.a. Chat Trakan Waterfall, is located within the park. Sandy beach near the falls is suitable for swimming. Some of the cliffs near the falls are inscribed with yet unexplained rock carvings. The stream from the waterfall joins the Phak River.