| Marignac-Laspeyres | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marignac-Laspeyres (Haute-Garonne).svg |
| Canton: | Cazères |
| Insee: | 31318 |
| Postal Code: | 31220 |
| Mayor: | Jean-Luc Lasserre[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.2158°N 0.9661°W |
| Elevation M: | 360 |
| Elevation Min M: | 285 |
| Elevation Max M: | 530 |
| Area Km2: | 12.41 |
Marignac-Laspeyres (in French pronounced as /maʁiɲak laspɛʁ/; Occitan (post 1500);: Marinhac e eras Pèiras) is a commune in the Haute-Garonne department in southwestern France.
The commune is bordered by four other communes: Terrebasse to the north, Alan to the west, Le Fréchet to the southwest, and finally by Martres-Tolosane to the southeast.