Nur al-Din Bimaristan (Arabic: البيمارستان النوري) is a large medieval bimaristan ("hospital") in Damascus, Syria. It is located in the al-Hariqa quarter in the old walled city, to the southwest of the Umayyad Mosque. It was built and named after the Zengid Sultan Nur ad-Din in 1154, and later on an extension was added to the main building in 1242 by a physician Badr al-Din. It was restored in 1975 and now houses the Museum of Medicine and Science in the Arab World.