List Of Drainage Basins By Area

All basins larger than 400,000 km² (150,000 sq mi) are included as well as selected smaller basins. It includes drainage basins which do not flow to the ocean (endorheic basins). It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are set by IHO convention).

The oceans drain approximately 83% of the land in the world. The other 17% – an area larger than the basin of the Arctic Ocean – drains to internal endorheic basins. There are also substantial areas of the world that do not "drain" in the commonly understood sense. In polar deserts, much of the snowfall sublimates directly into the air and does not melt into flowing water, while in tropical deserts precipitation may evaporate before joining any substantial water course. These areas can still be included in topographically defined basins if the hypothetical flow of water (or ice) over the surface of the ground (or ice sheet) is considered. For example, the Antarctic ice sheet can be divided into basins, and most of Libya is included in the Mediterranean Sea basin even though almost no water from the interior actually reaches the sea.

Basins

Continent color key
Africa	Asia	Asia/Europe	Europe	North America	Australia	South America	Antarctica

Basin	Type	Continent	Drains to	Basin area		Notes
Basin	Type	Continent	Drains to	km²	mi²	Notes
Atlantic Ocean	Ocean	Multiple	n/a	69,800,000	26,900,000
Arctic Ocean	Ocean	Multiple	n/a	23,100,000	8,900,000
Pacific Ocean	Ocean	Multiple	n/a	20,300,000	7,800,000
Indian Ocean	Ocean	Multiple	n/a	19,400,000	7,500,000
Southern Ocean	Ocean	Antarctica	n/a	14,000,000	5,400,000
Mediterranean-Black Sea system	Mediterranean sea	Multiple	Atlantic Ocean	7,770,000	3,000,000
Amazon River	Primary river	South America	Atlantic Ocean	6,200,000	2,400,000
Gulf of Mexico and Caribbean Sea	Mediterranean sea	Multiple	Atlantic Ocean	6,200,000	2,400,000
Mediterranean Sea	Mediterranean sea	Multiple	Atlantic Ocean	5,340,000	2,060,000
Hudson Bay drainage basin	Mediterranean sea	North America	Atlantic Ocean	3,861,400	1,490,900
Congo River	Primary river	Africa	Atlantic Ocean	3,730,881	1,440,501
Caspian Sea	Lake	Asia/Europe	n/a (endorheic basin)	3,626,000	1,400,000
Nile River	Primary river	Africa	Mediterranean Sea	3,254,853	1,256,706
Mississippi-Missouri River	Primary river	North America	Gulf of Mexico	3,202,185	1,236,371
Bay of Bengal	Bay	Asia	Indian Ocean	3,200,000	1,200,000
Río de la Plata	Estuary	South America	Atlantic Ocean	3,170,000	1,220,000
Ob River	Primary river	Asia	Arctic Ocean	2,982,493	1,151,547
Paraná River	Tributary river	South America	Río de la Plata	2,582,704	997,188
Yenisei River	Primary river	Asia	Arctic Ocean	2,554,388	986,255
Chad Basin	Endorheic basin	Africa	n/a (endorheic basin)	2,497,738	964,382
Lena River	Primary river	Asia	Arctic Ocean	2,306,743	890,638
Black Sea	Mediterranean sea	Asia/Europe	Mediterranean Sea	2,430,000	940,000
Niger River	Primary river	Africa	Atlantic Ocean	2,261,741	873,263
Ganges–Brahmaputra	Primary river	Asia	Bay of Bengal	1,999,000	772,000
Amur River	Primary river	Asia	Pacific Ocean	1,929,955	745,160
Mackenzie River	Primary river	North America	Beaufort Sea	1,805,200	697,000
Yangtze River (Chang Jiang)	Primary river	Asia	Pacific Ocean	1,722,193	664,942
Baltic Sea	Mediterranean sea	Europe	Atlantic Ocean	1,700,000	660,000
Irtysh River	Tributary river	Asia	Ob River	1,673,470	646,130
Aral Sea	Lake	Asia	n/a (endorheic basin)	1,618,750	625,000
Madeira River	Tributary river	South America	Amazon River	1,485,218	573,446
Volga River	Primary river	Europe	Caspian Sea	1,410,951	544,771
Persian Gulf	Mediterranean sea	Asia	Indian Ocean	1,400,000	540,000
St. Lawrence Estuary	Estuary	North America	Gulf of Saint Lawrence	1,344,200	519,000
Zambezi River	Primary river	Africa	Indian Ocean	1,332,574	514,510
Missouri River	Tributary river	North America	Mississippi River	1,331,810	514,210
Lake Eyre Basin	Lake	Australia	n/a (endorheic basin)	1,210,000	470,000
Ganges River	Primary river	Asia	Bay of Bengal	1,200,000	463,322
Paraguay River	Tributary river	South America	Paraná River	1,095,000	423,000
Indus River	Primary river	Asia	Arabian Sea	1,081,718	417,654
Nelson River	Primary river	North America	Hudson Bay	1,072,300	414,000
Murray-Darling basin	Primary river	Australia	Southern Ocean	1,050,116	405,452
St. Lawrence River	Primary river	North America	Atlantic Ocean	1,049,636	405,267
Angara River	Tributary river	Asia	Yenisei River	1,039,000	401,000
Lake Chad (New Conventional Basin)	Lake	Africa	n/a (endorheic basin)	1,035,000	400,000
Lake Winnipeg	Lake	North America	Nelson River	982,900	379,500
Great Slave Lake	Lake	North America	Mackenzie River	976,200	376,900
Orinoco River	Primary river	South America	Atlantic Ocean	953,675	368,216
Orange River	Primary river	Africa	Atlantic Ocean	941,351	363,458
Kasai River	Tributary river	Africa	Congo River	925,172	357,211
Shatt al-Arab (Tigris, Euphrates & Karun)	Primary river	Asia	Persian Gulf	916,200	353,700
Tarim Basin	Endorheic basin	Asia	n/a (endorheic basin)	906,500	350,000
North Sea	Mediterranean sea	Europe	Atlantic Ocean	850,000	330,000
Yukon River	Primary river	North America	Bering Sea	839,200	324,000
Yellow River	Primary river	Asia	Pacific Ocean	832,238	321,329
Mekong River	Primary river	Asia	Pacific Ocean	805,604	311,045
Jubba-Shebelle basin	Primary river	Africa	Indian Ocean	805,100	310,900
Great Lakes	Lake	North America	St. Lawrence River	800,114	308,926
Danube River	Primary river	Europe	Black Sea	795,656	307,204
Syr Darya	Primary river	Asia	Aral Sea	782,617	302,170
Tocantins River	Primary river	South America	Atlantic Ocean	764,213	295,064
Ubangi River	Tributary river	Africa	Congo River	754,830	291,440
Aldan River	Tributary river	Asia	Lena River	729,000	281,000
Kalahari Basin/Okavango Basin	Endorheic basin	Africa	n/a (endorheic basin)	721,258	278,479
Rio Negro	Tributary river	South America	Amazon River	720,114	278,038
Kolyma River	Primary river	Asia	Arctic Ocean	679,934	262,524
Columbia River	Primary river	North America	Pacific Ocean	671,300	259,200
Brahmaputra River	Tributary river	Asia	Ganges River	651,335	251,482
Colorado River	Primary river	North America	Gulf of California	637,137	246,000
Mamoré River	Tributary river	South America	Madeira River	630,835	243,567
Red Sea	Mediterranean sea	Africa/Asia	Indian Ocean	620,000	240,000
São Francisco River	Primary river	South America	Atlantic Ocean	617,812	238,539
Slave River	Tributary river	North America	Great Slave Lake	616,400	238,000
Rio Grande	Primary river	North America	Gulf of Mexico	607,934	234,725
Lake Baikal	Lake	Asia	Angara River	571,000	220,000
Songhua River	Tributary river	Asia	Amur River	554,575	214,123
Chari River	Primary river	Africa	Lake Chad	548,747	211,872
Amu Darya	Primary river	Asia	Aral Sea	534,739	206,464
Euphrates	Tributary river	Asia	Shatt al-Arab	532,300	205,500
Xingu River	Tributary river	South America	Amazon River	520,292	200,886
Bahr el Ghazal River	Tributary river	Africa	Nile	520,000	200,000
Lake Balkhash	Lake	Asia	n/a (endorheic basin)	512,015	197,690
Dnieper River	Primary river	Europe	Black Sea	511,650	197,550
Kama River	Tributary river	Europe	Volga River	507,000	196,000
Jubba River	Primary river	Africa	Indian Ocean	497,626	192,134
Great Basin	Endorheic basin	North America	n/a (endorheic basin)	492,000	190,000
Ohio River	Tributary river	North America	Mississippi River	490,603	189,423
Lower Tunguska River	Tributary river	Asia	Yenisei river	473,000	183,000
Vilyuy River	Tributary river	Asia	Lena River	454,000	175,000
Pearl River	Primary river	Asia	Pacific Ocean	453,700	175,200
Tapajós River	Tributary river	South America	Amazon River	453,510	175,100
Selenga River	Tributary river	Asia	Lake Baikal	445,245	171,910
Don River	Primary river	Europe	Black Sea	443,729	171,325
Arkansas River	Tributary river	North America	Mississippi River	435,122	168,002
Tobol River	Tributary river	Asia	Irtysh River	426,000	164,000
Limpopo River	Primary river	Africa	Indian Ocean	421,123	162,596
Senegal River	Primary river	Africa	Atlantic Ocean	419,575	161,999
Irrawaddy River	Primary river	Asia	Indian Ocean	413,710	159,730
Volta River	Primary river	Africa	Atlantic Ocean	407,093	157,179
Colorado River (Argentina)	Primary river	South America	Atlantic Ocean	373,863	144,349
Sistan Basin	Endorheic basin	Asia	n/a (endorheic basin)	370,000	140,000
Molopo River	Tributary river	Africa	Orange River	367,201	141,777
Yamuna	Tributary river	Asia	Ganges	366,223	141,399
Uruguay River	Primary river	South America	Río de la Plata	365,000	141,000
Khatanga River	Primary river	Asia	Arctic Ocean	364,000	141,000
Marañón River	Tributary river	South America	Amazon River	363,286	140,266
Guaporé River	Tributary river	South America	Mamoré River	360,534	139,203
Indigirka River	Primary river	Asia	Arctic Ocean	360,400	139,200
Araguaia River	Tributary river	South America	Tocantins River	358,125	138,273
Northern Dvina	Primary river	Europe	White Sea	357,075	137,867
Xi River	Tributary river	Asia	Pearl River	353,100	136,300
Purus River	Tributary river	South America	Amazon River	352,085	135,941
Ucayali River	Tributary river	South America	Amazon River	337,519	130,317
Shebelle River	Tributary river	Africa	Jubba River	336,627	129,972
Saskatchewan River	Tributary river	North America	Lake Winnipeg	335,900	129,700
Benue River	Tributary river	Africa	Niger River	335,035	129,358
Parnaíba River	Primary river	South America	Atlantic Ocean	331,643	128,048
Blue Nile	Tributary river	Africa	Nile	325,000	125,000
Pechora River	Primary river	Europe	Arctic Ocean	322,000	124,000
Hai River	Primary river	Asia	Pacific Ocean	318,200	122,900
Godavari River	Primary river	Asia	Indian Ocean	314,829	121,556
Peace River	Tributary river	North America	Slave River	306,000	118,000
Panjnad River (Chenab & Sutlej)	Tributary river	Asia	Indus River	300,000	120,000
Baker Lake/Chesterfield Inlet	Lake / estuary	North America	Hudson Bay	299,000	115,000
Red River of the North	Tributary river	North America	Lake Winnipeg	287,500	111,000
Churchill River (Hudson Bay)	Primary river	North America	Hudson Bay	281,300	108,600
Neva River	Primary river	Europe	Baltic Sea	281,000	108,000
Taz Estuary	Estuary	Asia	Arctic Ocean	262,000	101,000
Snake River	Tributary river	North America	Columbia River	278,450	107,510
Liard River	Tributary river	North America	Mackenzie River	277,100	107,000
Lake Athabasca-Rivière des Rochers	Lake	North America	Slave River	274,540	106,000
Salween River	Primary river	Asia	Indian Ocean	271,888	104,977
Lukuga River	Tributary river	Africa	Congo River	270,900	104,600
Luvua River	Tributary river	Africa	Congo River	265,300	102,400
Kwango River	Tributary river	Africa	Kasai River	263,400	101,700
Desaguadero River	Tributary river	South America	Colorado River or Endorheic	260,000	100,000
Mapimí-Salado basin	Endorheic basin	North America	n/a (endorheic basin)	260,000	100,000
Krishna River	Primary river	Asia	Indian Ocean	258,948	99,980
Magdalena River	Primary river	South America	Atlantic Ocean	257,438	99,397
Dongting Lake	Lake	Asia	Yangtze River	257,000	99,000
Japurá/Caquetá River	Tributary river	South America	Amazon River	255,700	98,700
Nen River	Tributary river	Asia	Songhua River	252,100	97,300
Oka River	Tributary river	Europe	Volga	245,000	95,000
Rhine–Meuse–Scheldt delta	Primary river	Europe	North Sea	240,000	93,000
Stony Tunguska River	Tributary river	Asia	Yenisei river	240,000	93,000
Beni River	Tributary river	South America	Madeira River	239,825	92,597
Lake Victoria	Lake	Africa	Nile River	238,900	92,200
Yana River	Primary river	Asia	Arctic Ocean	238,000	92,000
Lake Tanganyika	Lake	Africa	Lukuga River	236,300	91,200
Sangha River	Tributary river	Africa	Congo River	233,740	90,250
Fraser River	Primary river	North America	Pacific Ocean	233,100	90,000
Zeya River	Tributary river	Asia	Amur River	233,000	90,000
Liao River	Primary river	Asia	Pacific Ocean	232,200	89,700
Ural River	Primary river	Asia/Europe	Caspian Sea	231,000	89,000
Juruá River	Tributary river	South America	Amazon River	225,828	87,193
Sobat River	Tributary river	Africa	Nile River	225,000	87,000
Vitim River	Tributary river	Asia	Lena River	225,000	87,000
Ogooué River	Primary river	Africa	Atlantic Ocean	223,856	86,431
Tigris River	Tributary river	Asia	Shatt al-Arab	221,400	85,500
Platte River	Tributary river	North America	Missouri River	219,916	84,910
Olenyok River	Primary river	Asia	Arctic Ocean	219,000	85,000
Olyokma River	Tributary river	Asia	Lena River	210,000	81,000
Shilka River	Tributary river	Asia	Amur River	206,000	80,000
Rufiji River	Primary river	Africa	Indian Ocean	204,450	78,940
Kura River	Primary river	Asia	Caspian Sea	198,300	76,600
Vaal River	Tributary river	Africa	Orange River	196,438	75,845
Vistula	Primary river	Europe	Baltic Sea	194,424	75,068
Ussuri River	Tributary river	Asia	Amur River	193,000	75,000
Juruena River	Tributary river	South America	Tapajos River	191,030	73,760
Anadyr River	Primary river	Asia	Bering Sea	191,000	74,000
Branco River	Tributary river	South America	Rio Negro	189,925	73,330
Ishim River	Tributary river	Asia	Irtysh River	189,000	73,000
Rhine	Primary river	Europe	North Sea	185,300	71,500
Komadugu-Yobe River	Primary river	Africa	Lake Chad	183,009	70,660
Assiniboine River	Tributary river	North America	Red River	182,000	70,000
Pyasina River	Primary river	Asia	Pyasina Gulf	182,000	70,000
Yellowstone River	Tributary river	North America	Missouri River	181,000	70,000
Uyandina River	Tributary river	Asia	Indigirka River	176,000	68,000
Kotuy River	Tributary river	Asia	Khatanga River	176,000	68,000
Chenab River	Tributary river	Asia	Panjnad River	176,000	68,000
Han River	Tributary river	Asia	Yangtze River	174,300	67,300
Huai River	Tributary river	Asia	Yangtze River	174,000	67,000
Tshuapa/Ruki River	Tributary river	Africa	Congo River	173,800	67,100
Maya River	Tributary river	Asia	Aldan River	171,000	66,000
Salado River (Buenos Aires)	Primary river	South America	Atlantic Ocean	170,000	66,000
Red River of the South	Tributary river	North America	Mississippi River	169,890	65,590
Red River	Primary river	Asia	Gulf of Tonkin	169,000	65,000
Cuvelai River-Etosha Basin	Endorheic basin	Africa	n/a (endorheic basin)	166,649	64,344
Chesapeake Bay	Estuary	North America	Atlantic Ocean	166,534	64,299
Helmand River	Primary river	Asia	Sistan Basin	166,000	64,000
Argun / Hailar River	Tributary river	Asia	Amur River	164,000	63,000
Chao Phraya River	Primary river	Asia	Gulf of Thailand	160,400	61,900
Hulun Lake	Lake	Asia	Amur River / endorheic	160,335	61,906
Jialing River	Tributary river	Asia	Yangtze River	160,000	62,000
Luangwa River	Tributary river	Africa	Zambezi River	159,615	61,628
Tisza River	Tributary river	Europe	Danube	157,186	60,690
Torgay/Turgai River	Primary river	Asia	n/a (endorheic basin)	157,000	61,000
Mbomou River	Tributary river	Africa	Ubangi River	156,950	60,600
Great Bear River	Tributary river	North America	Mackenzie River	156,500	60,400
Kafue River	Tributary river	Africa	Zambezi River	155,805	60,157
Kansas River	Tributary river	North America	Missouri River	155,695	60,114
Ruvuma River	Primary river	Africa	Indian Ocean	155,500	60,000
Essequibo River	Primary river	South America	Atlantic Ocean	154,186	59,532
Sacramento–San Joaquin River Delta	Primary river	North America	San Francisco Bay	153,000	59,000
Ruo Shui	Primary river	Asia	Endorheic basin	152,606	58,922
Sankuru River	Tributary river	Africa	Kasai River	151,112	58,345
Atbarah River	Tributary river	Africa	Nile	150,000	58,000
Taz River	Primary river	Asia	Taz Estuary	150,000	58,000
Tietê River	Tributary river	South America	Paraná River	150,000	58,000
Cuanza River	Primary river	Africa	Atlantic Ocean	149,688	57,795
Shire River (Lake Malawi)	Tributary river	Africa	Zambezi River	149,159	57,591
Elbe	Primary river	Europe	North Sea	148,268	57,247
Putumayo River	Tributary river	South America	Amazon River	148,000	57,000
Bani River	Tributary river	Africa	Niger River	146,570	56,590
Ottawa River	Tributary river	North America	St. Lawrence River	146,300	56,500
South Saskatchewan River	Tributary river	North America	Saskatchewan River	146,100	56,400
Lake Titicaca-Desaguadero River-Lake Poopó System	Endorheic basin	South America	n/a (endorheic basin)	144,590	55,830
Chambal River	Tributary river	Asia	Yamuna River	143,219	55,297
Rio Grande (Paraná River)	Tributary river	South America	Paraná River	143,000	55,000
Fitzroy River (Queensland)	Primary river	Australia	Pacific Ocean	142,665	55,083
Thelon River	Primary river	North America	Baker Lake	142,400	55,000
Belaya River	Tributary river	Europe	Kama River	142,000	55,000
Iriri River	Tributary river	South America	Xingu River	141,745	54,728
Teles Pires River	Tributary river	South America	Tapajos River	141,620	54,680
Mahanadi River	Primary river	Asia	Indian Ocean	141,600	54,700
Ili River	Primary river	Asia	Lake Balkhash	140,000	54,000
Sanaga River	Primary river	Africa	Atlantic Ocean	140,000	54,000
Min River (Sichuan)	Tributary river	Asia	Yangtze River	140,000	54,000
Guaviare River	Tributary river	South America	Orinoco River	138,447	53,455
Santiago-Lerma basin	Primary river	North America	Pacific Ocean	136,628	52,752
Apure River	Tributary river	South America	Orinoco River	136,152	52,569
Winnipeg River	Tributary river	North America	Lake Winnipeg	135,800	52,400
Albany River	Primary river	North America	Hudson Bay	135,200	52,200
Wei River	Tributary river	Asia	Yellow River	135,000	52,000
Grijalva-Usumacinta basin	Primary river	North America	Gulf of Mexico	134,400	51,900
Chulym River	Tributary river	Asia	Ob River	134,000	52,000
Lukenie River	Tributary river	Africa	Congo River	133,432	51,518
Koksoak River	Primary river	North America	Ungava Bay	133,400	51,500
Orkhon River	Tributary river	Asia	Selenga River	132,835	51,288
Uele River	Tributary river	Africa	Ubangi River	131,856	50,910
Tambo-Ene-Apurímac River	Tributary river	South America	Ucayali River	131,460	50,760
Lake Turkana	Lake	Africa	n/a (endorheic basin)	130,860	50,530
Aripuanã River	Tributary river	South America	Madeira River	130,340	50,320
Malagarasi River	Tributary river	Africa	Lake Tanganyika	130,000	50,000
Mar Chiquita	Endorheic basin	South America	n/a (endorheic basin)	129,715	50,083
Burdekin River	Primary river	Australia	Pacific Ocean	129,700	50,100
Vyatka River	Tributary river	Europe	Kama River	129,000	50,000
Yalong River	Tributary river	Asia	Yangtze River	128,444	49,593
Taseyeva River	Tributary river	Asia	Angara River	128,000	49,000
Ghaghara / Karnali River	Tributary river	Asia	Ganges River	127,950	49,400
Trombetas River	Tributary river	South America	Amazon River	127,643	49,283
Tana River (Kenya)	Primary river	Africa	Indian Ocean	126,026	48,659
Madre de Dios River	Tributary river	South America	Beni River	125,287	48,374
Green River	Tributary river	North America	Colorado River	124,578	48,100
Kuskokwim River	Primary river	North America	Bering Sea	124,319	48,000
Salado River (Argentina)	Tributary river	South America	Paraná River	124,199	47,954
Taymyr River	Primary river	Asia	Kara Sea	124,000	48,000
Canadian River	Tributary river	North America	Arkansas River	123,221	47,576
Aruwimi River	Tributary river	Africa	Congo River	122,853	47,434
North Saskatchewan River	Tributary river	North America	Saskatchewan River	122,800	47,400
Prypiat River	Tributary river	Europe	Dnieper	121,840	47,040
Vychegda River	Tributary river	Europe	Northern Dvina	121,000	47,000
Mun River	Tributary river	Asia	Mekong River	119,180	46,020
Oder	Primary river	Europe	Baltic Sea	118,861	45,892
Porcupine River	Tributary river	North America	Yukon River	117,900	45,500
Loire	Primary river	Europe	Atlantic Ocean	117,000	45,000
Lomami River	Tributary river	Africa	Congo River	116,209	44,869
Brazos River	Primary river	North America	Gulf of Mexico	116,000	45,000
Awash Basin	Endorheic basin	Africa	n/a (endorheic basin)	116,000	45,000
Mobile River	Primary river	North America	Gulf of Mexico	115,000	44,000
Pecos River	Tributary river	North America	Rio Grande	115,000	44,000
Pilcomayo River	Tributary river	South America	Paraguay River	114,402	44,171
Sutlej River	Tributary river	Asia	Indus River	114,343	44,148
Panj River	Tributary river	Asia	Amu Darya River	114,000	44,000
Tanana River	Tributary river	North America	Yukon River	114,000	44,000
Kwando/Chobe River	Tributary river	Africa	Zambezi River	113,393	43,781
Omolon River	Tributary river	Asia	Kolyma River	113,000	44,000
Uchur River	Tributary river	Asia	Aldan River	113,000	44,000
Balsas River	Primary river	North America	Pacific Ocean	112,320	43,370
Pur River	Primary river	Asia	Taz Estuary	112,000	43,000
Awash River	Primary river	Africa	Lake Abbe (endorheic)	110,000	42,000
Pranhita River	Tributary river	Asia	Godavari River	109,078	42,115
Flinders River	Primary river	Australia	Gulf of Carpentaria	109,000	42,000
Moose River (Ontario)	Primary river	North America	Hudson Bay	108,500	41,900
Hayes River	Primary river	North America	Hudson Bay	108,000	42,000
Anyuy River (Sakha)	Tributary river	Asia	Kolyma River	107,000	41,000
Bermejo River	Tributary river	South America	Paraguay River	106,924	41,284
Cunene River	Primary river	Africa	Atlantic Ocean	106,560	41,140
Back River	Primary river	North America	Arctic Ocean	106,500	41,100
Save River	Primary river	Africa	Indian Ocean	106,420	41,090
Tennessee River	Tributary river	North America	Ohio River	105,868	40,876
Aras River	Tributary river	Asia	Kura River	104,785	40,458
Bahr Aouk River	Tributary river	Africa	Chari River	103,577	39,991
Wabash River	Tributary river	North America	Ohio River	103,500	40,000
Colorado River (Texas)	Primary river	North America	Gulf of Mexico	103,300	39,900
Severn River (northern Ontario)	Primary river	North America	Hudson Bay	102,800	39,700
Chindwin River	Tributary river	Asia	Irrawaddy River	102,783	39,685
Napo River	Tributary river	South America	Amazon River	102,190	39,460
Río Negro (Argentina)	Primary river	South America	Atlantic Ocean	102,000	39,000
Logone River	Tributary river	Africa	Chari River	101,481	39,182
Anabar River	Primary river	Asia	Arctic Ocean	100,000	39,000
Barito River (Borneo)	Primary river	Asia	Java Sea	100,000	39,000
Kheta River	Tributary river	Asia	Khatanga River	100,000	39,000
Markha River	Tributary river	Asia	Vilyuy River	99,900	38,600
Donets	Tributary river	Europe	Don River	98,900	38,200
Narmada River	Primary river	Asia	Arabian Sea	98,800	38,100
Kapuas River (Borneo)	Primary river	Asia	South China Sea	98,749	38,127
Rhône	Primary river	Europe	Mediterranean Sea	98,556	38,053
Bandama River	Primary river	Africa	Atlantic Ocean	98,500	38,000
Northern Sosva River	Tributary river	Asia	Ob River	98,300	38,000
Neman River	Primary river	Europe	Baltic Sea	97,864	37,786
La Grande River	Primary river	North America	James Bay	97,600	37,700
Douro / Duero	Primary river	Europe	Atlantic Ocean	97,502	37,646
Xiang River	Tributary river	Asia	Lake Dongting	96,400	37,200
Onon River	Tributary river	Asia	Shilka River	96,200	37,100
Sava River	Tributary river	Europe	Danube	95,419	36,841
Athabasca River	Tributary river	North America	Lake Athabasca	95,300	36,800
Brahmani River	Primary river	Asia	Indian Ocean	39,033	15,071
Penobscot River	Primary river	North America	Atlantic Ocean	22,200	8,600

Notes

References

List Of Drainage Basins By Area

Basins

See also

Notes

References

External links

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