List of the longest rivers in the world and the countries through which they run:
1. Amazon - 4,250 miles (6,800 km) – Brazil, Peru, Bolivia, Colombia, Ecuador, Venezuela, Guyana.
2. Nile – 4,160 miles (6,695 km) – Ethiopia, Eritrea, Sudan, Uganda, Tanzania, Kenya, Rwanda, Burundi, Egypt.
3. Yangtze – 3,917 miles (6,300 km) – China.
4. Mississippi-Missouri – 3,902 miles (6,275 km) – Canada, United States.
5. Yenisey-Angara-Selenga – 3,445 miles (5,539 km) – Mongolia, Russia.
6. Huang He (Yellow River) – 3,398 miles (5,464 km) – China.
7. Ob’-Irtysh – 3,364 miles (5,410 km) – China, Mongolia, Kazakhstan, Russia.
8. Parana – 3,030 miles (4,880 km) – Brazil, Paraguay, Argentina.
9. Congo – 2,922 miles (4,700 km) – Democratic Republic of the Congo, Central African Republic, Angola, Republic of the Congo, Tanzania, Cameroon, Zambia, Burundi, Rwanda.
10. Amur (Heilong Jiang) – 2,763 miles (4,446 km) – Russia, China, Mongolia.