River/Catalogs

This is a list of the longest rivers on the Earth. The data should be considered as approximate and informative, since it is difficult to precisely measure rivers' lengths and drainage areas, while the discharges vary considerably in time.

	River	Length (km)	Drainage area (km²)	Average discharge at mouth (m³/s)	Source	Outflow	Continent	Countries
1.	Amazon	6,520	7,180,000	180,000	inter-Andean plateau	Atlantic Ocean	South America	Peru, Colombia, Brazil, Bolivia, Ecuador, Venezuela
2.	Nile	6,480	2,880,000	1,600	Great Lakes region of central Africa (White Nile); Lake Tana, Ethiopia (Blue Nile)	Mediterranean Sea	Africa	Sudan, Burundi, Rwanda, Congo, Tanzania, Kenya, Uganda, Ethiopia, Egypt
3.	Yangtze	6,300	1,970,000	35,000	Qinghai Province, China	East China Sea	Asia	China
4.	Mississippi - Missouri	6,020	3,220,000	17,545	Lake Itasca, Minnesota (Mississippi); Brower's Spring, Montana, United States of America (Missouri)	Gulf of Mexico	North America	United States of America
5.	Ob - Irtysh	5,570	2,975,000	12,600		Gulf of Ob	Asia	Russia
6.	Yenisei	5,550	2,605,000	19,600		Kara Sea	Asia
7.	Yellow River	4,850	745,000	1,365	Gyaring Lake and Ngoring Lake, Qinghai Province, China	Bohai Sea	Asia	China
8.	Congo	4,700	3,822,000	42,000	Lake Tanganyika, Lake Mweru	Atlantic Ocean	Africa
9.	Amur	4,510	1,855,000	12,500		Sea of Okhotsk	Asia	Mongolia, Russia, China
10.	Río de la Plata	4,700	2,650,000	19,500		Atlantic ocean	South America	Argentina, Uruguay
11.	Lena	4,270	2,490	16,400	Baikal Mountains	Laptev Sea	Asia	Russia
12.	Mekong	4,350	810,000			South China Sea	Asia	Laos, Thailand, China, Cambodia, Vietnam, Myanmar
13.	Mackenzie	4,250				Beaufort Sea	North America
14.	Niger	4,030				Gulf of Guinea	Africa
15.	Saint Lawrence	3,100	1,300,000	10,400	Great Lakes, Lake Champlain, Ottawa, Richelieu, and Saguenay rivers	Gulf of Saint Lawrence	North America	Canada, United States of America
16.	Volga	3,690				Caspian Sea	Europe	Russia
17.	Murray - Darling	3,370				Pacific Ocean	Australia	Australia
18.	Yukon	3,185				Bering Sea	North America
19.	Zambezi	2,660				Mozambique Channel	Africa
20.	Orinoco	2,500					South America
21.	São Francisco	2,900				Atlantic Ocean	South America
22.	Rio Grande	2,870				Gulf of Mexico	North America
23.	Indus					Arabian Sea	Asia
24.	Euphrates - Tigris					Persian Gulf	Asia
25.	Danube River	2,860	805,000	6,450	Black Forest, Germany	Black Sea	Europe	Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, Ukraine
26.	Salween					Andaman Sea	Asia
27.	Brahmaputra River					Bay of Bengal	Asia
28.	Nelson River					Hudson Bay	North America
29.	Ganges River	2,510	1,070,000	15,000	Gangotri Glacier, Himalayas (India)	Bay of Bengal	Asia	India, Bangladesh
30.	Amu Darya						Asia
31.	Ural	2,534	220,000	350		Caspian Sea	Asia	Russia, Kazakhstan
32.	Kolyma	2,500				East Siberian Sea	Asia	Russia
33.	Colorado	2,333	390,000		La Poudre Pass Lake, Rocky Mountain National Park (Colorado, United States of America)	Gulf of California	North America	United States of America
34.	Dnieper					Black Sea	Europe
35.	Olenyok	2,300				Laptev Sea	Asia	Russia
36.	Orange					Atlantic Ocean	Africa
37.	Tarim - Khotan	2,100				Lop Nur	Asia	China
38.	Columbia	2,250				Pacific Ocean	North America	United States of America, Canada