| Bossòst | |
| Pushpin Map: | Spain Catalonia |
| Pushpin Map Caption: | Location in Catalonia |
| Subdivision Type: | Sovereign state |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Country |
| Subdivision Type2: | Region |
| Subdivision Name2: | Aran |
| Subdivision Type3: | Terçon |
| Subdivision Name3: | Quate Lòcs |
| Subdivision Type4: | Province |
| Subdivision Name4: | Lleida |
| Leader Name: | Amador Marqués Atés (2015)[1] |
| Coordinates: | 42.7856°N 0.6919°W |
| Elevation M: | 924 |
| Area Footnotes: | [2] |
| Area Total Km2: | 28.2 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Blank Info Sec2: | Cfb |
| Postal Code: | 25550 |
Bossòst (in Occitan (post 1500); pronounced as /buˈsɔs/) is a small Pyrenean village and municipality located in western Aran, Catalonia. It had 1,121 inhabitants as of 2022.[3] It is located in the terçon of Quate Lòcs.
Situated on the left bank of the river Garona, the village is bordered by Les, Vilamòs, Arres and France (by Bagnères-de-Luchon). The local football club, UE Bossòst, has the rare distinction of playing its regular matches in a foreign competition (it plays in the French minor leagues).