|
Afon
|
Hyd (km)
|
Dalgylch (km²)
|
Llif cyfartaledd (m³/eiliad)
|
Yn llifo i
|
Gwledydd yn y dalgylch
|
1.
|
Amazonas *
|
7040
|
6915000
|
219000
|
Cefnfor Iwerydd
|
Brasil, Periw, Bolivia, Colombia, Ecuador, Venezuela.
|
2.
|
Nîl *
|
6671
|
3400000
|
5100
|
Y Môr Canoldir
|
Ethiopia, Eritrea, Sudan, Uganda, Tanzania, Kenya, Rwanda, Burundi, Yr Aifft, Gweriniaeth Ddemocrataidd y Congo.
|
3.
|
Mississippi - Missouri - Jefferson
|
6270 (6420)
|
2980000
|
16200
|
Gwlff Mecsico
|
Unol Daleithiau America, Canada
|
4.
|
Yangtze (Chang Jiang)
|
6211 (5797)
|
1800000
|
31900
|
Môr Dwyrain China
|
Gweriniaeth Pobl Tseina
|
5.
|
Yenisei - Angara - Selenga
|
5550 (4506)
|
2580000
|
19600
|
Môr Kara
|
Rwsia, Mongolia
|
6.
|
Huang He (Yr Afon Felen)
|
5464 (4667)
|
745000
|
2571
|
Môr Bohai (Balhae)
|
Gweriniaeth Pobl Tseina
|
7.
|
Ob' - Irtysh
|
5410*
|
2990000
|
12800
|
Gwlff Ob
|
Rwsia, Kazakstan, Gweriniaeth Pobl Tseina
|
8.
|
Amur (Heilong Jiang)
|
4368*
|
1855000
|
11400
|
Môr Okhotsk
|
Rwsia, Gweriniaeth Pobl Tseina, Mongolia
|
9.
|
Congo (Zaire)
|
4371 (4670)
|
3680000
|
41800
|
Cefnfor Iwerydd
|
Gweriniaeth Ddemocrataidd y Congo, Gweriniaeth Canolbarth Affrica, Angola, Gweriniaeth y Congo, Tanzania, Cameroon, Zambia, Burundi, Rwanda
|
10.
|
Lena
|
4260 (4400)
|
2490000
|
17100
|
Môr Laptev
|
Rwsia
|
11.
|
Mackenzie - Peace - Finlay
|
4241 (5427)
|
1790000
|
10300
|
Môr Beaufort
|
Kanada
|
12.
|
Niger
|
4167 (4138*)
|
2090000
|
9570
|
Gwlff Guinea
|
Nigeria, Mali, Niger, Algeria, Guinea, Camerŵn, Burkina Faso, Côte d'Ivoire, Benin, Tsiad
|
13.
|
Mekong (Lancang Jiang)
|
4023
|
810000
|
16000
|
Môr De China
|
Laos, Gwlad Thai, Gweriniaeth Pobl Tseina, Cambodia, Vietnam, Myanmar
|
14.
|
Paraná (Río de la Plata)
|
3998 (4700)
|
3100000
|
25700
|
Cefnfor Iwerydd
|
Brasil, Ariannin, Paraguay, Bolivia, Uruguay
|
15.
|
Murray - Darling
|
3750 (3520)
|
1061000
|
767
|
Cefnfor y De
|
Awstralia
|
16.
|
Volga
|
3645*
|
1380000
|
8080
|
Môr Caspia
|
Rwsia
|
17.
|
Shatt al-'Arab / Arvandrud - Ewffrates
|
3596 (2992)
|
884000
|
856
|
Gwlff Persia
|
Iraq, Twrci, Iran, Syria
|
18.
|
Purus
|
3379 (2948) (3210)
|
63166
|
8400
|
Amazonas
|
Brasil, Periw
|
19.
|
Madeira - Mamoré
|
3239
|
850000
|
17000
|
Amazonas
|
Brasil, Bolivia, Periw
|
20.
|
Yukon
|
3184
|
850000
|
6210
|
Môr Bering
|
Unol Daleithiau America, Canada
|
21.
|
Indus (Sindhu)
|
3180
|
960000
|
7160
|
Môr Arabia
|
Pakistan, India, Gweriniaeth Pobl Tseina, Afghanistan
|
22.
|
São Francisco
|
3180* (2900)
|
610000
|
3300
|
Cefnfor Iwerydd
|
Brasilien
|
23.
|
Syr Darya - Naryn
|
3078
|
219000
|
703
|
Môr Aral
|
Kazakstan, Kirghizstan, Uzbekistan, Tagikistan
|
24.
|
Salawin (Nu Jiang)
|
3060
|
324000
|
3153
|
Môr Andaman
|
Gweriniaeth Pobl Tseina, Myanmar, Gwlad Thai
|
25.
|
St Lawrence - Llynnoedd Mawr
|
3058
|
1030000
|
10100
|
Gwlff St Lawrence
|
Canada, Unol Daleithiau America
|
26.
|
Rio Grande
|
3057 (2896)
|
570000
|
82
|
Gwlff Mecsico
|
Unol Daleithiau America, Mecsico
|
27.
|
Tunguska Isaf
|
2989
|
473000
|
3600
|
Yenisei
|
Rwsia
|
28.
|
Brahmaputra
|
2948*
|
1730000
|
19200
|
Bae Bengal
|
India, Gweriniaeth Pobl Tseina, Nepal, Bangladesh, Bhutan
|
29.
|
Donaw
|
2850*
|
817000
|
7130
|
Y Môr Du
|
Yr Almaen, Awstria, Slofacia, Hwngari, Croatia, Serbia, Bwlgaria, Romania, Moldafia, Wcrain
|
30.
|
Afon Ewffrates
|
2760
|
765831
|
818
|
Gwlff Persia
|
Twrci, Syria, Iraq
|
31.
|
Tocantins
|
2699
|
1400000
|
13598
|
Cefnfor Iwerydd, Amazonas
|
Brasilien
|
32.
|
Zambezi (Zambesi)
|
2693*
|
1330000
|
4880
|
Culfor Mosambîc
|
Zambia, Angola, Zimbabwe, Mosambic, Malawi, Tanzania, Namibia, Botswana
|
33.
|
Viljuj
|
2650
|
454000
|
1480
|
Lena
|
Rwsia
|
34.
|
Araguaia
|
2627
|
358125
|
6172
|
Tocantins
|
Brasilien
|
35.
|
Amu Darya
|
2620
|
534739
|
1400
|
Môr Aral
|
Uzbekistan, Turkmenistan, Tajikistan, Afghanistan
|
36.
|
Caquetá (Rio Yapurá neu Japurá)
|
2615*
|
242259
|
6000
|
Amazonas
|
Brasil, Colombia
|
37.
|
Nelson - Saskatchewan
|
2570
|
1093000
|
2575
|
Bae Hudson
|
Kanada
|
38.
|
Paraguay (Rio Paraguay)
|
2549
|
900000
|
4300
|
Paraná
|
Brasil, Paraguay, Bolivia, Ariannin
|
39.
|
Kolyma
|
2513
|
644000
|
3800
|
Môr Siberia Dwyreiniol
|
Rwsia
|
40.
|
Ganga
|
2510
|
907000
|
12037
|
Brahmaputra, Bae Bengal
|
India, Bangladesh, Nepal
|
41.
|
Pilcomayo
|
2500
|
270000
|
|
Paraguay
|
Paraguay, Ariannin, Bolivia
|
42.
|
Ob' Uchaf
|
2490
|
|
|
Ob
|
Rwsia
|
43.
|
Išim
|
2450
|
177000
|
56
|
Irtyš
|
Kazakstan, Rwsia
|
44.
|
Jurua
|
2410
|
200000
|
6000
|
Amazonas
|
Periw, Brasil
|
45.
|
Wral
|
2428
|
237000
|
475
|
Môr Caspia
|
Russia, Kazakstan
|
46.
|
Arkansas
|
2348
|
505000 (435122)
|
|
Mississippi
|
Unol Daleithiau America
|
47.
|
Ubangi - Uele
|
2300
|
|
|
Congo
|
Gweriniaeth Ddemocratig y Congo, Gweriniaeth Canolbarth Affrica
|
48.
|
Olenëk
|
2292
|
|
|
Môr Laptev
|
Rwsia
|
49.
|
Dnieper
|
2287
|
516300
|
1670
|
Môr Du
|
Rwsia, Bielorussia, Wcrain
|
50.
|
Aldan
|
2273
|
|
|
Lena
|
Rwsia
|
51.
|
Rio Negro
|
2250
|
|
|
Amazonas
|
Brasil, Venezuela, Colombia
|
52.
|
Columbia
|
2250 (1953)
|
415211
|
7400
|
Cefnfor Tawel
|
Unol Daleithiau, Canada
|
53.
|
Colorado
|
2333
|
390000
|
1200
|
Gwlff Califfornia
|
Unol Daleithiau, Mecsico
|
54.
|
Pearl - Xi Jiang
|
2200
|
437000
|
13600
|
Mar Cinese Meridionale
|
Tseina, Vietnam
|
55.
|
Red
|
2188
|
|
|
Mississippi
|
Unol Daleithiau
|
56.
|
Irrawaddy (Irrawaddi neu Ayeyarwady )
|
2170
|
411000
|
13000
|
Môr Andaman
|
Myanmar
|
57.
|
Kasai
|
2153
|
|
|
Congo
|
Angola, Gweriniaeth Ddemocratig y Congo
|
58.
|
Ohio - Allegheny
|
2102
|
490603
|
|
Mississippi
|
Unol Daleithiau
|
59.
|
Orinoco
|
2101
|
880000
|
30000
|
Cefnfor Iwerydd
|
Venezuela, Colombia
|
56.
|
Tarim
|
2100
|
|
|
Lop Nor
|
Gweiniaeth Pobl Tseina
|
61.
|
Xingu
|
2100
|
|
|
Amazonas
|
Brasilien
|
62.
|
Oren
|
2092
|
|
|
Cefnfor Iwerydd
|
De Affrica, Namibia, Botswana, Lesotho
|
63.
|
Salado Ogleddol
|
2010
|
|
|
Paraná
|
Ariannin
|
64.
|
Vitim
|
1978
|
|
|
Lena
|
Rwsia
|
65.
|
Tigris
|
1950
|
|
|
Shatt al-'Arab
|
Twrci, Iraq, Syria, Iran
|
66.
|
Songhua
|
1927
|
|
|
Amur
|
Gweriniaeth Pobl Tseina
|
67.
|
Tapajós
|
1900
|
|
|
Amazonas
|
Brasilien
|
68.
|
Don
|
1870
|
|
|
Môr Azov
|
Russland
|
69.
|
Angara
|
1865
|
|
|
Yenisei
|
Rwsia
|
70.
|
Pechora
|
1809
|
322000
|
|
Môr Barents
|
Rwsia
|
71.
|
Kama
|
1805
|
507000
|
|
Volga
|
Russland
|
72.
|
Afon Limpopo
|
1800
|
|
|
Cefnfor India
|
Mosambic, Zimbabwe, De Affrica, Botswana
|
73.
|
Guaporé
|
1749
|
|
|
Mamoré
|
Brasil, Bolivia
|
74.
|
Indigirka
|
1726
|
|
|
Mare della Siberia Orientale
|
Rwsia
|
75.
|
Snake
|
1670
|
|
|
Columbia
|
Unol Daleithiau America
|
76.
|
Senegal
|
1641
|
419659
|
|
Cefnfor Iwerydd
|
Senegal, Mali, Mauritania
|
77.
|
Uruguay
|
1610
|
|
|
Cefnfor Iwerydd
|
Uruguay, Ariannin, Brasil
|
78.
|
Afon Nîl Las
|
1600
|
|
|
Nîl
|
Ethiopia, Sudan
|
79.
|
Churchill
|
1600
|
|
|
Bae Hudson
|
Kanada
|
80.
|
Chatanga
|
1600
|
|
|
Môr Laptev
|
Rwsia
|
81.
|
Okavango
|
1600
|
|
|
Delta Okavango
|
Namibia, Angola, Botswana
|
82.
|
Volta
|
1600
|
|
|
Gwlff Guinea
|
Ghana, Burkina Faso, Togo, Costa d'Avorio, Benin
|
83.
|
Beni
|
1599
|
|
|
Madeira
|
Bolivien
|
84.
|
Platte
|
1594
|
|
|
Missouri
|
Unol Daleithiau
|
85.
|
Tobol
|
1591
|
|
|
Irtysh
|
Kazakstan, Rwsia
|
86.
|
Jubba - Uebi Scebeli
|
1580*
|
|
|
Cefnfor India
|
Ethiopia, Somalia
|
87.
|
Putumayo
|
1575
|
|
|
Amazonas
|
Brasil, Periw, Colombia, Ecuador
|
88.
|
Magdalena
|
1550
|
|
|
Môr y Caribî
|
Kolumbien
|
89.
|
Han
|
1532
|
|
|
Yangtze
|
Tseina
|
90.
|
Lomami
|
1500
|
|
|
Congo
|
Gweriniaeth Ddemocratig y Congo
|
91.
|
Oka
|
1500
|
|
|
Volga
|
Rwsia
|
92.
|
Pecos
|
1490
|
|
|
Rio Grande
|
Unol Daleithiau
|
93.
|
Yenisei uchaf
|
1480
|
|
|
Yenisei
|
Rwsia, Mongolia
|
94.
|
Godavari
|
1465
|
|
|
Bae Bengal
|
Indien
|
95.
|
Colorado (Texas)
|
1438
|
|
|
Gwlff Mecsico
|
Unol Daleithiau
|
96.
|
Río Grande (Guapay)
|
1438
|
|
|
Ichilo
|
Bolivien
|
97.
|
Belaya
|
1420
|
|
|
Kama
|
Russland
|
98.
|
Cooper - Barcoo
|
1420
|
|
|
Llyn Eyre
|
Awstralia
|
99.
|
Marañón
|
1415
|
|
|
Amazonas
|
Periw
|
100.
|
Dniester
|
1411 (1352)
|
|
|
Môr Du
|
Wcrain, Moldafia
|
101.
|
Benue
|
1400
|
|
|
Niger
|
Cameroon, Nigeria
|
102.
|
Ili (Yili)
|
1400
|
|
|
Llyn Baikhal
|
Tseina, Kazakstan
|
103.
|
Warburton - Georgina
|
1400
|
|
|
Llyn Eyre
|
Awstralia
|
104.
|
Yamuna
|
1376
|
|
|
Ganga
|
Indien
|
105.
|
Sutlej
|
1370
|
|
|
Chenab
|
Tseina, India, Pakistan
|
106.
|
Vyatka
|
1370
|
|
|
Kama
|
Rwsia
|
107.
|
Fraser
|
1368
|
|
|
Cefnfor Tawel
|
Kanada
|
108.
|
Kura
|
1364
|
|
|
Môr Caspia
|
Azerbaijan, Georgia, Armenia, Twrci, Iran
|
109.
|
Rio Grande (Paraná)
|
1360
|
|
|
Paraná
|
Brasile
|
110.
|
Brazos
|
1352
|
|
|
Gwlff Mecsico
|
Unol Daleithiau
|
111.
|
Liao
|
1345
|
|
|
Môr Bohai
|
Cina
|
112.
|
Yalong
|
1323
|
|
|
Yangtze
|
Tseina
|
113.
|
Iguazú
|
1320
|
|
|
Paraná
|
Brasil, Ariannin
|
114.
|
Olëkma
|
1320
|
|
|
Lena
|
Rwsia
|
115.
|
Rhein
|
1320
|
144055
|
|
Môr y Gogledd
|
Yr Almaen, Ffrainc, Y Swistir, Yr Iseldiroedd, Awstria, Luxembourg, Liechtenstein
|
116.
|
Krishna
|
1300
|
|
|
Bae Bengal
|
Indien
|
117.
|
Iriri
|
1300
|
|
|
Afon Xingu
|
Brasilien
|
118.
|
Narmada
|
1289
|
|
|
Môr Arabia
|
Indien
|
119.
|
Ottawa
|
1271
|
|
|
Afon St Lawrence
|
Kanada
|
120.
|
Zeja
|
1242
|
|
|
Amur
|
Rwsia
|
121.
|
Juruena
|
1240
|
|
|
Tapajós
|
Brasilien
|
122.
|
Mississippi uchaf
|
1236
|
|
|
Mississippi
|
Unol Daleithiau
|
123.
|
Athabasca
|
1231
|
|
|
Mackenzie
|
Kanada
|
124.
|
Canadian
|
1223
|
|
|
Arkansas
|
Unol Daleithiau
|
125.
|
North Saskatchewan
|
1220
|
|
|
Saskatchewan
|
Kanada
|
126.
|
Vaal
|
1210
|
|
|
Orange
|
De Affrica
|
127.
|
Shire
|
1200
|
|
|
Zambezi
|
Mosambic, Malawi
|
126.
|
Nen (Nonni)
|
1190
|
|
|
Songhua
|
Tseina
|
127.
|
Green
|
1175
|
|
|
Colorado
|
Unol Daleithiau
|
128.
|
Milk
|
1173
|
|
|
Missouri
|
Unol Daleithiau, Canada
|
129.
|
Elbe
|
1162*
|
|
|
Môr y Gogledd
|
Yr Almaen, Gweriniaeth Tsiec
|
130.
|
Chindwin
|
1158
|
|
|
Irrawaddy
|
Myanmar
|
131.
|
James
|
1143
|
|
|
Missouri
|
Unol Daleithiau
|
131.
|
Kapuas
|
1143
|
|
|
Môr De Isieina
|
Indonesien
|
133.
|
Helmand
|
1130
|
|
|
Hamun-i-Helmand
|
Afghanistan, Iran
|
133.
|
Madre de Dios
|
1130
|
|
|
Madeira
|
Periw, Bolifia
|
133.
|
Tietê
|
1130
|
|
|
Paraná
|
Brasilien
|
133.
|
Vycegda
|
1130
|
|
|
Dvina Settentrionale
|
Rwsia
|
137.
|
Sepik
|
1126
|
77700
|
|
Cefnfor Tawel
|
Papua Guinea Newydd, Indonesia
|
138.
|
Cimarron
|
1123
|
|
|
Arkansas
|
Unol Daleithiau
|
139.
|
Anadyr'
|
1120
|
|
|
Gwlff Anadyr'
|
Rwsia
|
140.
|
Liard
|
1115
|
|
|
Mackenzie
|
Kanada
|
141.
|
White
|
1102
|
|
|
Mississippi
|
Unol Daleithiau
|
142.
|
Huallaga
|
1100
|
|
|
Marañón
|
Periw
|
143.
|
Gambia
|
1094
|
|
|
Cefnfor Iwerydd
|
Gambia, Senegal, Guinea
|
144.
|
Chenab
|
1086
|
|
|
Indus
|
India, Pakistan
|
145.
|
Yellowstone
|
1080
|
|
|
Missouri
|
Unol Daleithiau
|
146.
|
Donets
|
1078 (1053)
|
|
|
Don
|
Wcrain, Rwsia
|
147.
|
Bermejo
|
1050
|
|
|
Paraguay
|
Ariannin, Bolivia
|
147.
|
Fly
|
1050
|
|
|
Gwlff Papua
|
Papua Guinea Newydd, Indonesia
|
147.
|
Guaviare
|
1050
|
|
|
Orinoco
|
Kolumbien
|
147.
|
Kuskokwim
|
1050
|
|
|
Môr Bering
|
Unol Daleithiau
|
151.
|
Tennessee
|
1049
|
|
|
Ohio
|
Unol Daleithiau
|
152.
|
Daugava
|
1020
|
|
|
Gwlff Riga
|
Lithwania, Belorwsia, Russia
|
153.
|
Gila
|
1015
|
|
|
Colorado
|
Unol Daleithiau
|
154.
|
Vistula
|
1014
|
|
|
Y Môr Baltig
|
Gwlad Pwyl
|
155.
|
Loire
|
1012
|
|
|
Cefnfor yr Iwerydd
|
Ffrainc
|
156.
|
Essequibo
|
1010
|
|
|
Oceano Atlantico
|
Guyana
|
156.
|
Chopër
|
1010
|
|
|
Don
|
Rwsia
|
158.
|
Tagus
|
1006
|
|
|
Cefnfor Iwerydd
|
Sbaen, Portiwgal
|
159.
|
Colorado (Ariannin)
|
1000
|
|
|
Cefnfor Iwerydd
|
Ariannin
|