| Seudre | |
|---|---|
 The Seudre near Saujon | |
   | |
| Native name | La Seudre (French) |
| Location | |
| Country | France |
| Physical characteristics | |
| Source | |
| • location | Charente-Maritime |
| Mouth | |
• location | Atlantic Ocean |
• coordinates | 45°48′5″N 1°8′33″W / 45.80139°N 1.14250°W |
| Length | 68 km (42 mi) |
The Seudre (French pronunciation: [sødʁ]) is a river in the Charente-Maritime département, southwestern France, flowing into the Atlantic Ocean. It is 68.2 km (42.4 mi) long.[1] Its source is near Saint-Genis-de-Saintonge. It flows northwest through Saint-André-de-Lidon, Saujon and La Tremblade. It flows into the Atlantic Ocean near Marennes. The lower course of the Seudre is brackish, and is used for oyster farming.