Chor Minor (Char Minar, Uzbek: Chor minor), alternatively known as the Madrasah of Khalif Niyaz-kul, is a historic mosque in the historic city of Bukhara, Uzbekistan. It is located in a lane northeast of the Lyab-i Hauz complex. It is protected as a cultural heritage monument, and also it is a part of the World Heritage Site Historic Centre of Bukhara.In Persian, the name of the monument means "Four minarets", and the building indeed has four towers.