This list brings together 57 rivers from around the world, running alphabetically from “Rhine” to “Raccoon River.” These waterways range from short coastal streams to major transboundary rivers that cross several countries, and they serve as sources of drinking water, irrigation, transportation, hydroelectric power, and recreation for millions of people.
Rivers are natural channels of flowing water that travel from higher ground, such as mountains or hills, down to lakes, seas, or oceans, carving valleys and shaping the land along the way. Many rivers have guided trade routes, marked political borders, and supported entire civilizations throughout history. The Rhine, for instance, has shaped European trade and culture for centuries, while Argentina’s Riachuelo has become a well-known symbol of urban river pollution and cleanup efforts.
Below you’ll find the table with the river, countries, length, type, and description for each entry.
River: the name of each river in this list, arranged alphabetically so you can quickly find the one you’re looking for.
Countries: the country or countries each river flows through, giving you a sense of its geographic reach at a glance.
Length (km): the total length of each river in kilometers, letting you compare their sizes quickly and easily.
Type: the kind of river it is, such as coastal, tributary, transboundary, or border, showing how it fits into the wider water system.
Description: a short summary of each river’s notable features, history, or role in the region it flows through.
Rivers
| River | Countries | Length (km) | Type |
|---|---|---|---|
| Rhine | Switzerland, Liechtenstein, Austria, Germany, France, Netherlands | 1,233 | Transboundary river |
| Rhône | Switzerland, France | 813 | Transboundary river |
| Rio Grande | United States, Mexico | 3,051 | Border river |
| Red River (Asia) | China, Vietnam | 1,149 | Transboundary river |
| Red River (South) | United States | 2,190 | Tributary river |
| Red River (North) | United States, Canada | 880 | Transboundary river |
| Roanoke River | United States | 660 | Coastal river |
| Rappahannock River | United States | 296 | Coastal river |
| Republican River | United States | 679 | Tributary river |
| Rock River | United States | 449 | Tributary river |
| Rogue River | United States | 346 | Coastal river |
| Russian River | United States | 110 | Coastal river |
| Root River | United States | 130 | Tributary river |
| Raritan River | United States | 88 | Coastal river |
| Red Deer River | Canada | 724 | Tributary river |
| Rideau River | Canada | 146 | Tributary/canal river |
| Richelieu River | Canada | 130 | Tributary river |
| Restigouche River | Canada | 200 | Coastal river |
| Ruhr | Germany | 219 | Tributary river |
| Regnitz | Germany | 60 | Tributary river |
| Rems | Germany | 78 | Tributary river |
| Regen | Germany | 90 | Tributary river |
| Reuss | Switzerland | 158 | Tributary river |
| Ribble | United Kingdom | 121 | Coastal river |
| Ravi River | India, Pakistan | 720 | Transboundary river |
| Ramganga | India | 596 | Tributary river |
| Rio Negro (Amazon) | Brazil, Colombia, Venezuela | 2,250 | Tributary river |
| Rio Negro (Argentina) | Argentina | 635 | Coastal river |
| Rio Negro (Uruguay) | Uruguay | 750 | Tributary river |
| Rio de la Plata | Argentina, Uruguay | 290 | Estuary |
| Rio Doce | Brazil | 853 | Coastal river |
| Rio Grande (Brazil) | Brazil | 1,360 | Tributary river |
| Rio Paraíba do Sul | Brazil | 1,150 | Coastal river |
| Rio Colorado | Argentina | 1,010 | Coastal river |
| Rio Chubut | Argentina | 867 | Coastal river |
| Ruvuma River | Tanzania, Mozambique | 800 | Border river |
| Rufiji River | Tanzania | 600 | Coastal river |
| Ruaha River | Tanzania | 475 | Tributary river |
| Ruzizi River | Democratic Republic of the Congo, Rwanda, Burundi | 117 | Transboundary river |
| Roper River | Australia | 392 | Coastal river |
| Richmond River | Australia | 222 | Coastal river |
| Ross River | Australia | 50 | Coastal river |
| Rangitikei River | New Zealand | 241 | Coastal river |
| Rangitata River | New Zealand | 121 | Braided river |
| Rakaia River | New Zealand | 145 | Braided river |
| Rewa River | Fiji | 145 | Coastal river |
| Rapel River | Chile | 200 | Coastal river |
| Rimac River | Peru | 204 | Coastal river |
| Rio San Juan | Nicaragua, Costa Rica | 200 | Border river |
| Rio Dulce | Guatemala | 43 | Coastal river |
| Rio Motagua | Guatemala | 486 | Coastal river |
| Rio Grande de Santiago | Mexico | 562 | Coastal river |
| Rioni River | Georgia | 327 | Coastal river |
| Rio Tinto | Spain | 100 | Coastal river |
| Recknitz | Germany | 70 | Coastal river |
| Riachuelo | Argentina | 64 | Coastal river |
| Raccoon River | United States | 230 | Tributary river |
Descriptions
Rhine
One of Europe’s most important waterways, the Rhine links the Alps to the North Sea and has shaped trade, culture, and borders for centuries.
Rhône
Rising from a glacier in the Swiss Alps, the Rhône flows through Lake Geneva and southern France before reaching the Mediterranean Sea.
Rio Grande
Forming much of the border between the US and Mexico, this river begins in Colorado and winds south to the Gulf of Mexico.
Red River (Asia)
Known locally as the Song Hong, this river carries fertile silt into Vietnam’s Red River Delta, home to Hanoi and millions of farmers.
Red River (South)
Flowing through Texas, Oklahoma, Arkansas, and Louisiana, this river gets its name from the reddish silt it carries from the southern plains.
Red River (North)
Unusual for flowing north, this river drains Minnesota and North Dakota into Canada’s Lake Winnipeg, and is prone to major spring flooding.
Roanoke River
This Virginia and North Carolina river flows into Albemarle Sound and is named after the historic Roanoke Colony near its mouth.
Rappahannock River
A tidal Virginia river that saw major Civil War battles along its banks before emptying into the Chesapeake Bay.
Republican River
Flowing through Colorado, Nebraska, and Kansas, it joins the Smoky Hill River to form the Kansas River.
Rock River
Flowing from Wisconsin into Illinois, it joins the Mississippi River and once powered a string of mill towns along its banks.
Rogue River
A wild and scenic Oregon river famous for whitewater rafting, salmon runs, and cutting through the rugged Rogue River Canyon.
Russian River
Winding through California’s wine country before reaching the Pacific, it’s popular for canoeing and lined with vineyards.
Root River
A scenic Minnesota river carved through limestone bluffs, popular for trout fishing and the Root River bike trail.
Raritan River
New Jersey’s longest river entirely within the state, flowing into Raritan Bay near New York Harbor.
Red Deer River
This Alberta river cuts through the badlands near Drumheller, exposing fossil beds rich in dinosaur remains.
Rideau River
Linking Ottawa to Lake Ontario as part of the historic Rideau Canal, a UNESCO World Heritage waterway.
Richelieu River
Connecting Lake Champlain to the St. Lawrence River, it was a key transport and military route in colonial North America.
Restigouche River
A prized Atlantic salmon river running between New Brunswick and Quebec into the Bay of Chaleur.
Ruhr
Once the industrial artery of Germany’s Ruhr Valley, it now flows through cleaned-up cities and reservoirs before joining the Rhine.
Regnitz
Formed by the union of two smaller rivers near Bamberg, it flows into the Main and shaped that city’s historic waterways.
Rems
A tributary of the Neckar that gives its name to the fertile Remstal wine-growing valley in Baden-Württemberg.
Regen
Flowing from the Bavarian Forest to join the Danube at Regensburg, the city it lends its name to.
Reuss
Flowing from the Swiss Alps through Lake Lucerne, it’s a major tributary of the Aare and eventually the Rhine.
Ribble
Flowing through Lancashire and Yorkshire, this English river is prized for salmon fishing and passes through the city of Preston.
Ravi River
One of the five rivers of Punjab, it flows past Lahore before joining the Chenab, and holds deep cultural significance in the region.
Ramganga
A Himalayan tributary of the Ganges that flows through Corbett National Park, home to tigers and diverse wildlife.
Rio Negro (Amazon)
The largest left-bank tributary of the Amazon, famous for its dark, tannin-stained water that gives it its name.
Rio Negro (Argentina)
Formed by two Andean rivers, it flows east across Patagonia to the Atlantic, irrigating orchards and vineyards along its valley.
Rio Negro (Uruguay)
Uruguay’s longest interior river, dammed to create the vast Rincón del Bonete reservoir, the country’s largest lake.
Rio de la Plata
One of the widest river mouths on Earth, this estuary carries the combined waters of the Paraná and Uruguay rivers to the Atlantic.
Rio Doce
Meaning “Sweet River,” it flows through Minas Gerais and Espírito Santo and made headlines after a major 2015 mining dam disaster.
Rio Grande (Brazil)
One of the two rivers that merge to form the Paraná, it’s heavily dammed for hydroelectric power along its course.
Rio Paraíba do Sul
A vital water source for Rio de Janeiro and São Paulo, flowing between coastal mountain ranges before reaching the Atlantic.
Rio Colorado
Formed in the Andes, it flows across the arid Patagonian steppe and marks a rough boundary between northern and southern Argentina.
Rio Chubut
Patagonia’s longest river within a single province, supporting irrigated farmland in an otherwise dry region.
Ruvuma River
This river forms much of the border between Tanzania and Mozambique as it flows to the Indian Ocean.
Rufiji River
Tanzania’s largest river by volume, feeding the vast Rufiji Delta and the wildlife-rich Selous Game Reserve.
Ruaha River
A major tributary of the Rufiji, it’s the lifeline of Ruaha National Park, drawing huge herds during the dry season.
Ruzizi River
A short but important river draining Lake Kivu into Lake Tanganyika through Africa’s Great Rift Valley.
Roper River
Flowing through the Northern Territory, it’s known for barramundi fishing and crocodile-inhabited waters near its tidal mouth.
Richmond River
A subtropical New South Wales river flowing past Lismore before reaching the Pacific Ocean at Ballina.
Ross River
Running through Townsville in Queensland, it gave its name to the mosquito-borne Ross River virus first identified nearby.
Rangitikei River
Carving deep gorges through the North Island, this river is popular for whitewater rafting and bungee jumping.
Rangitata River
A classic South Island braided river flowing from the Southern Alps across the Canterbury Plains.
Rakaia River
One of New Zealand’s largest braided rivers, known for salmon fishing and its wide, gravelly riverbed.
Rewa River
Fiji’s longest river, flowing through fertile lowlands on Viti Levu before reaching the sea near Nausori.
Rapel River
Formed by the union of two rivers in central Chile, it’s dammed to create the country’s largest artificial lake.
Rimac River
Flowing from the Andes through Lima, it supplies the Peruvian capital with much of its drinking water.
Rio San Juan
Draining Lake Nicaragua to the Caribbean Sea, it forms part of the border with Costa Rica and was once eyed for a canal route.
Rio Dulce
A short, jungle-lined river connecting Lake Izabal to the Caribbean, popular with boaters for its dramatic limestone gorge.
Rio Motagua
Guatemala’s longest river, flowing through a dry valley before reaching the Caribbean near the Honduran border.
Rio Grande de Santiago
Part of the Lerma-Santiago system, it carries water from central Mexico’s highlands down to the Pacific coast.
Rioni River
Rising in the Caucasus Mountains, it flows through the city of Kutaisi and empties into the Black Sea.
Rio Tinto
Named “red river” for water stained by centuries of mining, it flows through one of the world’s oldest mined landscapes in Andalusia.
Recknitz
A slow-moving northern German river flowing through marshy lowlands to the Baltic Sea near Rostock.
Riachuelo
Also called the Matanza-Riachuelo, this short Buenos Aires waterway is one of the most polluted rivers in South America and the focus of major cleanup efforts.
Raccoon River
Flowing through Iowa farmland, it joins the Des Moines River and is a popular canoeing and fishing destination.