| Janvilliers | |
| Commune Status: | Commune |
| Arrondissement: | Épernay |
| Canton: | Sézanne-Brie et Champagne |
| Insee: | 51304 |
| Postal Code: | 51210 |
| Mayor: | Olivier Himmesoete[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Brie Champenoise |
| Coordinates: | 48.895°N 3.6492°W |
| Elevation M: | 219 |
| Area Km2: | 8.74 |
Janvilliers (in French pronounced as /ʒɑ̃vilje/) is a commune in the Marne department in north-eastern France.
Janvilliers is not the setting for Sebastian Faulks' 1989 novel The Girl at the Lion d'Or. Although Faulks' novel is largely set in a town called Janvilliers, descriptions of the town in the book indicate that it is situated on the Atlantic Coast in Brittany.[2]