| Gaves réunis | |
| Pushpin Map: | France#France Nouvelle-Aquitaine |
| Mouth Coordinates: | 43.5461°N -1.1947°W |
| Subdivision Type1: | Country |
| Length: | 9.4km (05.8miles) |
| Discharge1 Avg: | 188m3/s |
| Basin Size: | 5200km2 |
The Gaves réunis (in French pronounced as /ɡav ʁeyni/) is a 9.4 km river in southwestern France connecting Peyrehorade to the Adour at Bec du Gave.[1] It is formed by the confluence of the Gave de Pau and the Gave d'Oloron. It is navigable for 8 km from the confluence with the Adour until the town Peyrehorade.[2]