Shompur Môhabihar) in Paharpur, Badalgachhi Upazila, Naogaon District, Bangladesh is among the best known Buddhist viharas in the Indian Subcontinent and is one of the most important archaeological sites in the country. It was designated as a UNESCO World Heritage Site in 1985. It dates from a similar time period to the nearby Halud Vihara and to the Sitakot Vihara in Nawabganj Upazila of Dinajpur District.