| Rancourt-sur-Ornain | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Rancourt-sur-Ornain (Meuse).svg |
| Arrondissement: | Bar-le-Duc |
| Canton: | Revigny-sur-Ornain |
| Insee: | 55414 |
| Postal Code: | 55800 |
| Mayor: | Christian Michel[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Pays de Revigny-sur-Ornain |
| Coordinates: | 48.8267°N 4.915°W |
| Elevation M: | 120 |
| Elevation Min M: | 124 |
| Elevation Max M: | 138 |
| Area Km2: | 9.99 |
Rancourt-sur-Ornain (in French pronounced as /ʁɑ̃kuʁ syʁ ɔʁnɛ̃/, literally Rancourt on Ornain) is a commune in the Meuse department in Grand Est in north-eastern France.