Bishazari Tal, also spelled Beeshazar Tal, is an extensive oxbow lake system in the buffer zone of the Chitwan National Park, a protected area in the Inner Terai of central Nepal. This wetland covers an area of at an altitude of , and is situated between the Mahabharat mountain range (Lower Himalayan Range) to the north and the Siwalik range to the south. In August 2003, it has been designated as a Ramsar site.