Tarn-et-Garonne (French pronunciation: [taʁn‿e ɡa.ʁɔn]) is a department in the southwest of France. It is traversed by the Rivers Tarn and Garonne, from which it takes its name.
The department was created on November 4, 1808 during the First French Empire by a decision of Napoleon I. It was formed out of territories belonging to neighboring areas. More than half of the territory was taken from the Lot (including Montauban and Moissac), over one-third was taken from Haute-Garonne (including Castelsarrasin), and the rest from the departments of Lot-et-Garonne, Gers, and Aveyron.
Tarn-et-Garonne constitutes part of the Midi-Pyrénées region. It borders the departments of Lot, Aveyron, Tarn, Haute-Garonne, Gers, and Lot-et-Garonne.
The highest point in the department, at 510 m, is the Pech Maurel, situated in the commune of Castanet.