Halud Vihara (Bengali: হলুদ বিহার) is 14.5 kilometres (9.0 mi) south of the World Heritage Site of Somapura Mahavihara, at Pahapur in the Naogaon District of Bangladesh.
[1][2] A brick structure has been exposed at the top of the mound that seems to be the remains of a large hall.
A flight of stairs have been excavated on the eastern slopes of the mound.
[3] Excavations show that it was an early Medieval Buddhist site, from a similar time period to Somapura Mahavihara and to the Sitakot Vihara in Nawabganj Upazila of Dinajpur District.
[3][4] This site was added to the UNESCO World Heritage Tentative List on February 17, 1999, in the cultural category.