| Aux Marais | |
| Commune Status: | Commune |
| Arrondissement: | Beauvais |
| Canton: | Beauvais-2 |
| Insee: | 60703 |
| Postal Code: | 60000 |
| Mayor: | Christophe Tabary[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Beauvaisis |
| Coordinates: | 49.4147°N 2.0428°W |
| Elevation Min M: | 67 |
| Elevation Max M: | 172 |
| Area Km2: | 5.71 |
Aux Marais (in French pronounced as /o maʁɛ/) is a commune in the Oise department in northern France.