Somapura Mahavihara (Bengali: সোমপুর মহাবিহার 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 is also one of the earliest sites of Bengal, where significant amount of Hindu statues were found. It was designated as a UNESCO World Heritage Site in 1985.