Sultan Süca Türbesi is a small mausoleum located in the old walled city of Diyarbakır. It stands on the main north-south axial avenue of the old city, just inside the Mardin Gate. The tomb dates to the first quarter of the thirteenth/seventh century AH and was once part of a larger complex that included a mosque and fountain. The tomb takes the form of a domed cube, the dome hidden under a pitched roof.