| Malaucourt-sur-Seille | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Malaucourt-sur-Seille (Moselle).svg |
| Arrondissement: | Sarrebourg-Château-Salins |
| Canton: | Le Saulnois |
| Insee: | 57436 |
| Postal Code: | 57590 |
| Mayor: | Maurice Jacquemin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Saulnois |
| Coordinates: | 48.8417°N 6.3594°W |
| Elevation M: | 260 |
| Elevation Min M: | 191 |
| Elevation Max M: | 276 |
| Area Km2: | 7.17 |
Malaucourt-sur-Seille (pronounced as /fr/, literally Malaucourt on Seille;) is a commune in the Moselle department in Grand Est in north-eastern France.