| Mardeuil | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Mardeuil (51).svg |
| Arrondissement: | Épernay |
| Canton: | Épernay-1 |
| Insee: | 51344 |
| Postal Code: | 51530 |
| Mayor: | Denis de Chillou de Churet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Épernay, Coteaux et Plaine de Champagne |
| Coordinates: | 49.055°N 3.9306°W |
| Area Km2: | 9.19 |
| Demonym: | Mardouillats, Mardouillates |
| Website: | http://www.commune-de-mardeuil.com/ |
Mardeuil (in French pronounced as /maʁdœj/) is a commune in the Marne department in north-eastern France.