List of rivers of Rio Grande do Sul
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List of rivers in Rio Grande do Sul (Brazilian State).
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.
Atlantic Coast/Lagoa dos Patos
Lagoa dos Patos is connected to the Atlantic by the Rio Grande inlet.
- Mampituba River
- Três Forquilhas River
- Maquiné River
- Tramandaí River
- Lagoa dos Patos
- Guaíba River
- Camaquã River
- São Lourenço River
- Arroio Pelotas
- São Gonçalo Channel
- Arroio Chuí
Uruguay Basin
- Uruguay River
- Río Negro
- Quaraí River
- Ibicuí River
- Icamaquã River
- Do Meio River
- Piratini River
- Ijuí River
- Comandaí River
- Amandaú River
- Santo Cristo River
- Santa Rosa River
- Buricá River
- Caá-Iari River
- Turvo River
- Guarita River
- Ogarantim River (Fortaleza River)
- Da Várzea River
- Passo Fundo River
- Douradinho River
- Palomas River
- Dourado River
- Lambedor River
- Suzana River
- Apuaê River
- Inhandava River (Forquilha River)
- Pelotas River
Alphabetically
- Amandaú River
- Das Antas River
- Apuaê River
- Azul River
- Bernardo José River
- Boucaraí River
- Buricá River
- Caá-Iari River
- Cacequi River
- Cadeia River
- Caí River
- Dos Caixões River
- Camaquã River
- Camisas River
- Canastra River
- Carreiro River
- Cati River
- Caxambu River
- Cerquinha River
- Arroio Chuí
- Comandaí River
- Conceição River
- Douradinho River
- Dourado River
- Erechim River
- Fiúza River
- Forqueta River
- Forquetinha River
- Forromeco River
- Lajeado Grande River
- Gravataí River
- Guaíba River
- Guaporé River
- Guarita River
- Humaitã River (Turvo River)
- Ibicuí da Armada River
- Ibicuí da Cruz River
- Ibicuí River
- Ibicuí-Mirim River
- Ibirapuitã Chico River
- Ibirapuitã River
- Ibirubá River
- Icamaquã River
- Ijuí River
- Ijuizinho River
- Inhandava River (Forquilha River)
- Itu River
- Ituim River
- Ivaí River
- Jacuí River
- Jacuí-Mirim River
- Jacuizinho River
- Jaguarão River
- 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
- Paranhana River
- Pardo River
- Passo Fundo River
- Pelotas River
- Arroio Pelotas
- Piaí River
- Pinhal River
- Piraçupiá River (Santa Rita River)
- Piraju River
- Piratini River (Uruguay River)
- Piratini River (São Gonçalo Channel)
- Da Prata River
- Quaraí River
- Quebra-Dentes River
- Rolante River
- Santa Maria River
- Santa Rosa River
- Santo Cristo River
- São Domingos River
- São Gonçalo Channel
- São Lourenço River
- São Sepe River
- Dos Sinos River
- Socorro River
- Soturno River
- Suçuarana River
- Suzana River
- Tainhas River
- Taquari River
- Taquari-Mirim River
- Da Telha River
- Tomé River
- Toropi River
- Dos Touros River
- Tramandaí River
- Três Forquilhas River
- Turvo River
- Uruguay River
- Vacacaí River
- Vacacaí-Mirim River
- Da Várzea River