| Lunax | |
| Arrondissement: | Saint-Gaudens |
| Canton: | Saint-Gaudens |
| Commune: | Péguilhan |
| Insee: | 31307 |
| Postal Code: | 31350 |
| Coordinates: | 43.3403°N 0.6878°W |
| Elevation M: | 295 |
| Elevation Min M: | 217 |
| Elevation Max M: | 298 |
| Area Km2: | 5.1 |
| Population: | 62 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Lunax (Gascon: Lunats or Lunacs) is a former commune in the Haute-Garonne department in southwestern France. On 1 January 2017, it was merged into the commune Péguilhan.[2]
The river Gesse forms all of the commune's eastern border; the Gimone forms all of its western border.