| Mana | |
| Map: | Guyane LaManaRiver map.svg |
| Mouth: | Atlantic Ocean |
| Mouth Location: | Mana |
| Mouth Coordinates: | 5.7289°N -53.8381°W |
| Source1: | Mount Galbao |
| Source1 Location: | 3.6175°N -53.2825°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Subdivision Type2: | Region |
| Subdivision Name2: | French Guiana |
| Length: | 462km (287miles) |
The Mana (in French pronounced as /mana/) is a river in western French Guiana. It runs north from central French Guiana to the town of Mana, where it flows into the Atlantic Ocean. It is 462km (287miles) long.