The "arrondissement" of Toul is most western of the southern part of the Meurthe-et-Moselle department. It is bordered to the north by the "arrondissement" of Briey, to the east by the "arrondissement" of Nancy, to the south by the Vosges department and to the west by the Meuse department. It has an small exclave to the southeast of the "arrondissement" of Briey.