The arrondissement of Montauban is an arrondissement of France in the Tarn-et-Garonne department in the Occitanie region.

[2] Its population is 184,398 (2021), and its area is 2,116.8 km2 (817.3 sq mi).

[3] The communes of the arrondissement of Montauban, and their INSEE codes, are:[2] The arrondissement of Montauban was created in 1800 as part of the department Lot.

[5] As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements.

The cantons of the arrondissement of Montauban were, as of January 2015:[6]