| Allaine | |
|---|---|
| Origin | Jura mountains |
| Mouth | Doubs River |
| Basin countries | Switzerland, France |
| Length | 65 km |
| Source elevation | 605 m |
| Basin area | 322 km² |
The Allaine (named Allan in its lower course) is a 65 km long river in northwestern Switzerland and eastern France. Its source is in the village Charmoille, in the Swiss Jura mountains. It is a left tributary of the Doubs, which it joins a few km downstream from Montbéliard.
The Allaine flows through the following cantons, départements and towns: