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river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...
s in
Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...
(
Brazilian State The federative units of Brazil ( pt, unidades federativas do Brasil) are subnational entities with a certain degree of autonomy (self-government, self-regulation and self-collection) and endowed with their own government and constitution, which ...
). The list is arranged by drainage basin from north to south, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. All rivers in Rio Grande do Sul drain to the
Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
.


By Drainage Basin


Atlantic Coast/Lagoa dos Patos

Lagoa dos Patos Lagoa dos Patos (, , ; English: ''Ducks' Lagoon'') is the largest lagoon in Brazil and the largest coastal lagoon in South America. It is located in the state of Rio Grande do Sul, southern Brazil. It covers an area of , is long and has a maximu ...
is connected to the Atlantic by the Rio Grande inlet. * Mampituba River * Três Forquilhas River * Maquiné River * Tramandaí River *
Lagoa dos Patos Lagoa dos Patos (, , ; English: ''Ducks' Lagoon'') is the largest lagoon in Brazil and the largest coastal lagoon in South America. It is located in the state of Rio Grande do Sul, southern Brazil. It covers an area of , is long and has a maximu ...
**
Guaíba River Guaíba is a city located in the Metropolitan Porto Alegre of Porto Alegre, in the Brazilian state of Rio Grande do Sul. The city is on the shores of the Guaíba Lake. History In the current territory of the municipality of Guaíba there have ...
***
Gravataí River Gravataí River () is a river that runs along Gravataí (a city located in the metropolitan area of Porto Alegre Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1, ...
*** Dos Sinos River **** Paranhana River **** Rolante River ***
Jacuí River The Jacuí River () is a river in Rio Grande do Sul state of southern Brazil. The Jacuí empties into the Guaíba River, an estuarine arm of the Lagoa dos Patos, a large coastal lagoon connected to the Atlantic Ocean. Sources The Jacuí River, ...
****
Caí River The Caí River () is a river of Rio Grande do Sul state in southern Brazil. It is a tributary of the Jacuí River, just above the junction with the Guaíba. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Br ...
***** Maratá River *****
Cadeia River The Cadeia River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with r ...
***** Forromeco River ******
Canastra River The Canastra River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with ...
******* Jaguari River *****
Pinhal River The Pinhal River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with r ...
***** Do Ouro River *****
Piaí River The Piaí River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with re ...
***** Caracol River ****
Taquari River The Taquari River ( pt, Rio Taquari) is a river in the states of Mato Grosso and Mato Grosso do Sul in Brazil. It is a left tributary of the Paraguay River. The town of Coxim is situated on the Taquari. The Taquari River is considered the most de ...
***** Taquari-Mirim River *****
Forqueta River The Forqueta River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with ...
******
Forquetinha River The Forquetinha River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, w ...
*****
Guaporé River Guaporé River ( pt, Rio Guaporé, es, Río Iténez) is a river in western Brazil and northeastern Bolivia. It is long; of the river forms the border between Brazil and Bolivia. The Guaporé River is part of the Madeira River basin, which eve ...
*****
Carreiro River Rio Carreiro is a river in the state of Rio Grande do Sul in Brazil. The source of the river is between the municipalities of Ibiraiaras and Lagoa Vermelha, whence it flows generally south until it joins the Das Antas River to form the Taquari ...
****** São Domingos River ***** Das Antas River ****** Da Prata River ******* Humaitã River (Turvo River) ******** Da Telha River ********* Ituim River ********
Piraçupiá River The Piraçupiá River, also known as Santa Rita River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul References

Rivers of Rio Grande do Sul {{RioGrandedoSul-river-stub ...
(Santa Rita River) ****** Quebra-Dentes River ****** Lajeado Grande River ****** Tomé River ******
Tainhas River Rio Tainhas ( pt, Rio Tainhas) is a river in the state of Rio Grande do Sul, Brazil. It is a left tributary of the Das Antas River Part of the course of the river, including the Cachoeira do Passo do S, a waterfall, is protected by the Tainha ...
****** Camisas River **** Pardo River **** Botucaraí River ****
Vacacaí River The Vacacaí River () is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, w ...
***** São Sepe River **** Vacacaí-Mirim River **** Soturno River **** Jacuizinho River ***** Dos Caixões River ****
Ivaí River The Ivaí River (Portuguese, Rio Ivaí) is a river of Paraná state in southern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. A ...
**** Jacuí-Mirim River **** Ibirubá River **
Camaquã River The Camaquã River () is a river of Rio Grande do Sul state in southern Brazil. The delta of the river, where it empties into the Lagoa dos Patos, is protected by the Camaquã State Park, created in 1975. See also *List of rivers of Rio Grande ...
** São Lourenço River ** Arroio Pelotas **
São Gonçalo Channel The São Gonçalo Channel () is a navigable channel connecting two large coastal lagoons, Lagoa Mirim and Lagoa dos Patos, in the state of Rio Grande do Sul in southern Brazil. At its eastern end, it separates the municipalities of Rio Grande to ...
*** Piratini River ***
Lagoa Mirim Lagoon Mirim (Portuguese, ) or Merín (Spanish, ) is a large estuarine lagoon which extends from southern Rio Grande do Sul state in Brazil into eastern Uruguay. Lagoa Mirim is separated from the Atlantic Ocean by a sandy, partially barren isth ...
****
Jaguarão River The Jaguarão or Yaguarón River ( pt, Rio Jaguarão, es, Río Yaguarón) is a Brazilian and Uruguayan river. It forms the border between Uruguay and Rio Grande do Sul state in southernmost Brazil. The river originates in Serras de Sudeste (South ...
* Arroio Chuí


Uruguay Basin

*
Uruguay River The Uruguay River ( es, Río Uruguay, ; pt, Rio Uruguai, ) is a major river in South America. It flows from north to south and forms parts of the boundaries of Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of La M ...
** Río Negro **
Quaraí River Quarai is a Brazilian municipality located near the border with Uruguay on the Rio Quaraí. The population is 22,607 (2020 est.) in an area of 3,147.63 km2, making it one of the largest municipalities in the state. Its elevation is 112 m. It ...
***
Cati River The Cati River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with res ...
**
Ibicuí River The Ibicuí River (Portuguese, Rio Ibicuí) () is a river in Rio Grande do Sul state of southern Brazil. The Ibicuí is 290 km in length, and is the main tributary of the Uruguay River. It is formed by the confluence of the Ibicuí-Mirim River ...
*** Ibirapuitã River ****
Ibirapuitã Chico River The Ibirapuitã Chico River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to so ...
*** Itu River *** Jaguari River **** Jaguarizinho River *** Santa Maria River **** Cacequi River **** Ibicuí da Armada River ***** Ibicuí da Cruz River ***
Ibicuí-Mirim River The Ibicuí-Mirim River (Portuguese, Rio Ibicuí-Mirim) is a river of Rio Grande do Sul state in southern Brazil. It joins the Toropi River to form the Ibicuí River The Ibicuí River (Portuguese, Rio Ibicuí) () is a river in Rio Grande do Sul ...
*** Toropi River ** Icamaquã River ** Do Meio River ** Piratini River *** Piraju River ** Ijuí River ***
Ijuizinho River The Ijuizinho River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, wit ...
*** Conceição River *** Caxambu River *** Fiúza River ** Comandaí River ** Amandaú River ** Santo Cristo River ** Santa Rosa River ** Buricá River **
Caá-Iari River The Caá-Iari River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, wit ...
** Turvo River ** Guarita River *** Ogarantim River (Fortaleza River) ** Da Várzea River *** Lajeado Grande River ** Passo Fundo River *** Erechim River ** Douradinho River **
Palomas River The Palomas River is a river of Rio Grande do Sul state in southern Brazil. It is a tributary of the Uruguay River. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by d ...
*** Azul River ** Dourado River ** Lambedor River ** Suzana River ** Apuaê River ** Inhandava River (Forquilha River) **
Pelotas River The Pelotas River (Portuguese language, Portuguese, ''Rio Pelotas'') () is a river in southern Brazil, and a tributary of the Uruguay River. The river originates in the Serra Geral at Alto do Bispo and flows northeast for before meeting the Cano ...
*** Bernardo José River *** Suçuarana River *** Socorro River *** Dos Touros River *** Cerquinha River


Alphabetically

* Amandaú River * Das Antas River * Apuaê River * Azul River * Bernardo José River * Boucaraí River * Buricá River *
Caá-Iari River The Caá-Iari River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, wit ...
* Cacequi River *
Cadeia River The Cadeia River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with r ...
*
Caí River The Caí River () is a river of Rio Grande do Sul state in southern Brazil. It is a tributary of the Jacuí River, just above the junction with the Guaíba. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Br ...
* Dos Caixões River *
Camaquã River The Camaquã River () is a river of Rio Grande do Sul state in southern Brazil. The delta of the river, where it empties into the Lagoa dos Patos, is protected by the Camaquã State Park, created in 1975. See also *List of rivers of Rio Grande ...
* Camisas River *
Canastra River The Canastra River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with ...
*
Carreiro River Rio Carreiro is a river in the state of Rio Grande do Sul in Brazil. The source of the river is between the municipalities of Ibiraiaras and Lagoa Vermelha, whence it flows generally south until it joins the Das Antas River to form the Taquari ...
*
Cati River The Cati River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with res ...
* Caxambu River * Cerquinha River * Arroio Chuí * Comandaí River * Conceição River * Douradinho River * Dourado River * Erechim River * Fiúza River *
Forqueta River The Forqueta River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with ...
*
Forquetinha River The Forquetinha River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, w ...
* Forromeco River * Lajeado Grande River *
Gravataí River Gravataí River () is a river that runs along Gravataí (a city located in the metropolitan area of Porto Alegre Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1, ...
*
Guaíba River Guaíba is a city located in the Metropolitan Porto Alegre of Porto Alegre, in the Brazilian state of Rio Grande do Sul. The city is on the shores of the Guaíba Lake. History In the current territory of the municipality of Guaíba there have ...
*
Guaporé River Guaporé River ( pt, Rio Guaporé, es, Río Iténez) is a river in western Brazil and northeastern Bolivia. It is long; of the river forms the border between Brazil and Bolivia. The Guaporé River is part of the Madeira River basin, which eve ...
* Guarita River * Humaitã River (Turvo River) * Ibicuí da Armada River * Ibicuí da Cruz River *
Ibicuí River The Ibicuí River (Portuguese, Rio Ibicuí) () is a river in Rio Grande do Sul state of southern Brazil. The Ibicuí is 290 km in length, and is the main tributary of the Uruguay River. It is formed by the confluence of the Ibicuí-Mirim River ...
*
Ibicuí-Mirim River The Ibicuí-Mirim River (Portuguese, Rio Ibicuí-Mirim) is a river of Rio Grande do Sul state in southern Brazil. It joins the Toropi River to form the Ibicuí River The Ibicuí River (Portuguese, Rio Ibicuí) () is a river in Rio Grande do Sul ...
*
Ibirapuitã Chico River The Ibirapuitã Chico River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to so ...
* Ibirapuitã River * Ibirubá River * Icamaquã River * Ijuí River *
Ijuizinho River The Ijuizinho River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, wit ...
* Inhandava River (Forquilha River) * Itu River * Ituim River *
Ivaí River The Ivaí River (Portuguese, Rio Ivaí) is a river of Paraná state in southern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. A ...
*
Jacuí River The Jacuí River () is a river in Rio Grande do Sul state of southern Brazil. The Jacuí empties into the Guaíba River, an estuarine arm of the Lagoa dos Patos, a large coastal lagoon connected to the Atlantic Ocean. Sources The Jacuí River, ...
* Jacuí-Mirim River * Jacuizinho River *
Jaguarão River The Jaguarão or Yaguarón River ( pt, Rio Jaguarão, es, Río Yaguarón) is a Brazilian and Uruguayan river. It forms the border between Uruguay and Rio Grande do Sul state in southernmost Brazil. The river originates in Serras de Sudeste (South ...
* Jaguari River * Jaguari River * Jaguarizinho River * Lambedor River * Mampituba River * Maquiné River * Maratá River * Do Meio River * Río Negro * Ogarantim River (Fortaleza River) * Do Ouro River *
Palomas River The Palomas River is a river of Rio Grande do Sul state in southern Brazil. It is a tributary of the Uruguay River. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by d ...
* Paranhana River * Pardo River * Passo Fundo River *
Pelotas River The Pelotas River (Portuguese language, Portuguese, ''Rio Pelotas'') () is a river in southern Brazil, and a tributary of the Uruguay River. The river originates in the Serra Geral at Alto do Bispo and flows northeast for before meeting the Cano ...
* Arroio Pelotas *
Piaí River The Piaí River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with re ...
*
Pinhal River The Pinhal River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, with r ...
*
Piraçupiá River The Piraçupiá River, also known as Santa Rita River is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul References

Rivers of Rio Grande do Sul {{RioGrandedoSul-river-stub ...
(Santa Rita River) * Piraju River * Piratini River * Piratini River * Da Prata River *
Quaraí River Quarai is a Brazilian municipality located near the border with Uruguay on the Rio Quaraí. The population is 22,607 (2020 est.) in an area of 3,147.63 km2, making it one of the largest municipalities in the state. Its elevation is 112 m. It ...
* Quebra-Dentes River * Rolante River * Santa Maria River * Santa Rosa River * Santo Cristo River * São Domingos River *
São Gonçalo Channel The São Gonçalo Channel () is a navigable channel connecting two large coastal lagoons, Lagoa Mirim and Lagoa dos Patos, in the state of Rio Grande do Sul in southern Brazil. At its eastern end, it separates the municipalities of Rio Grande to ...
* São Lourenço River * São Sepe River * Dos Sinos River * Socorro River * Soturno River * Suçuarana River * Suzana River *
Tainhas River Rio Tainhas ( pt, Rio Tainhas) is a river in the state of Rio Grande do Sul, Brazil. It is a left tributary of the Das Antas River Part of the course of the river, including the Cachoeira do Passo do S, a waterfall, is protected by the Tainha ...
*
Taquari River The Taquari River ( pt, Rio Taquari) is a river in the states of Mato Grosso and Mato Grosso do Sul in Brazil. It is a left tributary of the Paraguay River. The town of Coxim is situated on the Taquari. The Taquari River is considered the most de ...
* Taquari-Mirim River * Da Telha River * Tomé River * Toropi River * Dos Touros River * Tramandaí River * Três Forquilhas River * Turvo River *
Uruguay River The Uruguay River ( es, Río Uruguay, ; pt, Rio Uruguai, ) is a major river in South America. It flows from north to south and forms parts of the boundaries of Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of La M ...
*
Vacacaí River The Vacacaí River () is a river of Rio Grande do Sul state in southern Brazil. See also *List of rivers of Rio Grande do Sul List of rivers in Rio Grande do Sul (Brazilian State). The list is arranged by drainage basin from north to south, w ...
* Vacacaí-Mirim River * Da Várzea River


References


Map
from
Ministry of Transport A ministry of transport or transportation is a ministry responsible for transportation within a country. It usually is administered by the ''minister for transport''. The term is also sometimes applied to the departments or other government age ...

GEOnet Names Server
{{Rivers in Brazil
Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...
Environment of Rio Grande do Sul