Arrondissement of Montauban
The arrondissement is bordered to the north by the Lot (Occitanie) department, to the northeast by the Aveyron (Occitanie) department, to the east by the Tarn (Occitanie) department, to the south by the Haute-Garonne (Occitanie) department and to the west by the arrondissement of Castelsarrasin.