| Airain | |
| Pushpin Map: | France#France Centre |
| Source1 Location: | Nérondes |
| Source1 Coordinates: | 46.9981°N 2.8164°W |
| Mouth Coordinates: | 47.0497°N 2.5653°W |
| Subdivision Type1: | Country |
| Length: | 47.8km (29.7miles) |
| Source1 Elevation: | 185m (607feet) |
| Mouth Elevation: | 139m (456feet) |
| Discharge1 Avg: | 1.62m3/s |
| Basin Size: | 300km2 |
The Airain or Airin is a 47.8km (29.7miles) long river in the Cher department in central France. Its source is at Nérondes. It flows generally west, with a U shape. It is a left tributary of the Yèvre, into which it flows at Savigny-en-Septaine, 13km (08miles) southeast of Bourges.
This list is ordered from source to mouth: Nérondes, Tendron, Bengy-sur-Craon, Flavigny, Cornusse, Ourouer-les-Bourdelins, Charly, Lugny-Bourbonnais, Osmery, Bussy, Vornay, Dun-sur-Auron, Crosses, Savigny-en-Septaine,