| Montaigu-de-Quercy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Montaigu-de-Quercy (Tarn-et-Garonne).svg |
| Arrondissement: | Castelsarrasin |
| Canton: | Pays de Serres Sud-Quercy |
| Insee: | 82117 |
| Postal Code: | 82150 |
| Mayor: | Robert Alazard[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.3411°N 1.0189°W |
| Elevation M: | 250 |
| Elevation Min M: | 131 |
| Elevation Max M: | 295 |
| Area Km2: | 76.44 |
Montaigu-de-Quercy (in French pronounced as /mɔ̃tɛɡy də kɛʁsi/; Occitan (post 1500);: Montagut de Carcin) is a commune in the Tarn-et-Garonne department in the Occitanie region in southern France.
Former French commune in Agenais reunited in 1828 with the commune of Montaigu-de-Quercy (formerly known as Montagut d'Agenés in occitan).