The Loagan Bunut National Park (Malay: Taman Negara Loagan Bunut) is a national park located in Miri Division, Sarawak, Malaysia, on the Borneo island. The park was named after the Loagan Bunut lake nearby, which is connected to Sungai Bunut (sungai is Malay for river), Sungai Baram and Sungai Tinjar. This park occupies a space of 100 km2 (39 sq mi) and is well known for its rich biodiversity and unique aquatic ecosystem. The national park was gazetted on January 1, 1990 and it was opened to public on August 29, 1991.