| The Selle | |
| Map: | Selle (rivière).png |
| Source1 Location: | Catheux |
| Mouth Coordinates: | 49.9069°N 2.2806°W |
| Subdivision Type1: | Country |
| Length: | 39km (24miles) |
| Discharge1 Avg: | 4.5m3/s |
| Basin Size: | 610km2 |
The Selle (in French pronounced as /sɛl/; also spelt Celle in the Oise) is a river of Hauts-de-France, France. It is 39.2km (24.4miles) long. Rising at Catheux, just north of Crèvecœur-le-Grand, Oise, it flows past Conty, Saleux, Salouël and Pont-de-Metz before joining the Somme at Amiens.
In many places along its course, the river widens to form or fill lakes, much appreciated by anglers and gravel extractors. Several water-powered mills can still be seen including a paper-mill at Prouzel. Brown trout thrive in the clear waters of the river.