The 2 arrondissements of the Tarn-et-Garonne department of France are:
In 1800, the arrondissement of Montauban was created as a part of the department Lot, and the arrondissement of Castelsarrasin as a part of the department Haute-Garonne. In 1808 the department of Tarn-et-Garonne was created, with the arrondissements of Montauban, Castelsarrasin and Moissac. The arrondissement of Moissac was disbanded in 1926.