| Belleville-et-Châtillon-sur-Bar | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Belleville-et-Châtillon-sur-Bar.svg |
| Arrondissement: | Vouziers |
| Canton: | Vouziers |
| Insee: | 08057 |
| Postal Code: | 08240 |
| Mayor: | Claude Debources[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.4469°N 4.8292°W |
| Elevation M: | 236 |
| Elevation Min M: | 162 |
| Elevation Max M: | 243 |
| Area Km2: | 21.21 |
Belleville-et-Châtillon-sur-Bar (in French pronounced as /bɛlvil e ʃatijɔ̃ syʁ baʁ/, literally Belleville and Châtillon on Bar) is a commune in the Ardennes department in northern France.