| Cosson | |
| Map: | Cosson.png |
| Pushpin Map: | France#France Centre |
| Source1 Location: | Sologne |
| Source1 Coordinates: | 47.6972°N -2.2494°W |
| Mouth Location: | Beuvron |
| Mouth Coordinates: | 47.4947°N 1.2508°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Length: | 96.4km (59.9miles) |
| Source1 Elevation: | 134m (440feet) |
| Mouth Elevation: | 64m (210feet) |
The Cosson (in French pronounced as /kɔsɔ̃/) is a 96.4km (59.9miles) long river in central France, a right tributary of the river Beuvron. Its source is near the village of Vannes-sur-Cosson, Sologne. The Cosson flows through the following departments and communes:
The château de Chambord is built in one curve of the Cosson. The Cosson flows into the river Beuvron in Candé-sur-Beuvron, less than 1km (01miles) from its confluence with the Loire.