| Nizan-Gesse | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Gaudens |
| Canton: | Saint-Gaudens |
| Insee: | 31398 |
| Postal Code: | 31350 |
| Mayor: | Mathieu Solle[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.2342°N 0.5983°W |
| Elevation M: | 390 |
| Elevation Min M: | 320 |
| Elevation Max M: | 476 |
| Area Km2: | 8.64 |
Nizan-Gesse (pronounced as /fr/; oc|Nisan de Gessa) is a commune in the Haute-Garonne department in southwestern France.
The river Gesse forms part of the commune's northwestern border.