The Bardiya National Park is a protected area in Nepal that was established in 1988 as Royal Bardia National Park. Covering an area of 968 km2, it is the largest and most undisturbed national park in Nepal's Terai, adjoining the eastern bank of the Karnali River and bisected by the Babai River in the Bardiya District. Its northern limits are demarcated by the crest of the Siwalik Hills. The Nepalgunj-Surkhet highway partly forms the southern boundary, but seriously disrupts the protected area.