| Brieulles-sur-Bar | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Brieulles-sur-Bar.svg |
| Arrondissement: | Vouziers |
| Canton: | Vouziers |
| Insee: | 08085 |
| Postal Code: | 08240 |
| Mayor: | Alain Sembeni[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.4778°N 4.8542°W |
| Elevation M: | 185 |
| Elevation Min M: | 162 |
| Elevation Max M: | 246 |
| Area Km2: | 13.23 |
Brieulles-sur-Bar (pronounced as /fr/, literally Brieulles on Bar) is a commune in the Ardennes department in northern France.