| Louvois | |
| Arrondissement: | Épernay |
| Canton: | Épernay-1 |
| Insee: | 51331 |
| Postal Code: | 51150 |
| Commune: | Val de Livre |
| Coordinates: | 49.1017°N 4.1167°W |
| Elevation Min M: | 109 |
| Elevation Max M: | 281 |
| Area Km2: | 12.17 |
| Population: | 328 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Louvois (in French pronounced as /luvwa/) is a former commune in the Marne department in north-eastern France. On 1 January 2016, it was merged into the new commune Val de Livre.[2] thumb|left|Castle and baroque gardens.
The trouvère Jehan de Louvois was lord of the place in the 13th century.
The village's vineyards are located in the Montagne de Reims subregion of Champagne, and are classified as Grand Cru (100%) in the Champagne vineyard classification.