| Layou River | |
|---|---|
 Layou River | |
  Location of mouth | |
| Location | |
| Country | Dominica |
| Physical characteristics | |
| Mouth | Caribbean Sea |
• coordinates | 15°23′N 61°26′W / 15.383°N 61.433°W |
| Length | 27.6 km (17.1 mi) |
| Basin size | 74.3 km2 (28.7 sq mi) |
The Layou River is a river in Dominica. It rises in the interior of the country, flowing westward to reach the Caribbean Sea on the country's central western coast, very close to the town of St. Joseph. It is the longest and deepest river in Dominica. With a total length of 27.6 km (17.1 mi) long.