| Aujon | |
| Map: | Aujon.png |
| Source1 Location: | Perrogney-les-Fontaines |
| Source1 Coordinates: | 47.8139°N 5.1794°W |
| Mouth Coordinates: | 48.1556°N 4.7972°W |
| Subdivision Type1: | Country |
| Length: | 68km (42miles) |
| Source1 Elevation: | 430m (1,410feet) |
| Mouth Elevation: | 185m (607feet) |
| Discharge1 Avg: | 6.45m3/s |
| Basin Size: | 480km2 |
The Aujon (in French pronounced as /oʒɔ̃/) is a 68km (42miles) long river in the Haute-Marne and Aube departments in northeastern France. Its source is at Perrogney-les-Fontaines. It flows generally northwest. It is a right tributary of the Aube into which it flows at Longchamp-sur-Aujon.
This list is ordered from source to mouth: