| Garrosse | |
| Arrondissement: | Mont-de-Marsan |
| Canton: | Pays morcenais tarusate |
| Insee: | 40107 |
| Postal Code: | 40110 |
| Commune: | Morcenx-la-Nouvelle |
| Coordinates: | 44.0133°N -0.9272°W |
| Elevation M: | 69 |
| Elevation Min M: | 58 |
| Elevation Max M: | 94 |
| Area Km2: | 26.68 |
| Population: | 303 |
| Population Date: | 2022 |
| Population Footnotes: | [1] |
Garrosse (pronounced as /fr/; oc-gascon|Garròssa) is a former commune in the Landes department in Nouvelle-Aquitaine in southwestern France. On 1 January 2019, it was merged into the new commune Morcenx-la-Nouvelle.[2]