1. Nile River (Africa): 6,650 km (4,132 mi)
2. Amazon River (South America): 6,400 km (3,976 mi)
3. Yangtze River (Asia): 6,300 km (3,915 mi)
4. Mississippi-Missouri River System (North America): 5,971 km (3,710 mi)
5. Yenisei River (Asia): 5,539 km (3,442 mi)
6. Ob-Irtysh River System (Asia): 5,410 km (3,362 mi)
7. Amur River (Asia): 4,416 km (2,744 mi)
8. Congo River (Africa): 4,374 km (2,718 mi)
9. Niger River (Africa): 4,167 km (2,589 mi)
10. Paraná River (South America): 4,099 km (2,547 mi)