- The Senegal River is shared by four West African countries: Guinea, Mali, Senegal, and Mauritania.
- Length: 1,080 km (670 miles)
2. Gambia River
- The Gambia River's basin covers parts of Gambia and Guinea.
- Length: 1,130 km (700 miles)
3. Geba River
- The Geba River flows through Guinea-Bissau and Senegal.
- Length: 545 km (338 miles)
4. Rio Grande River
- The Rio Grande River is the largest river in Guinea-Bissau.
- Length: 240 km (149 miles)
5. Congo River
- The Congo River is the second-largest river in Africa and the deepest in the world.
- Length: 4,700 km (2,922 miles)