This is a list of rivers of Argentina.
Longest Rivers
By drainage basin
This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. Rivers in the table above are in bold.
La Plata Basin
Río de la Plata
Uruguay River
Gualeguaychú River
Mocoretá River
Miriñay River
Aguapey River
Pepiri-Guazu River
Paraná River
Arrecifes River
Gualeguay River
Nogoyá River
Arroyo del Medio
Saladillo Stream
Ludueña Stream
Carcarañá River
Tercero River (Calamuchita River) Cuarto River (Saladillo River, Chocancharava River) Salado River (Salado del Norte, Juramento River, Pasaje River, Calchaquí River) Horcones River Urueña River Arenales River Rosario River Guasamayo River San Javier River Feliciano River Guayquiraró River Corriente River Paraná Miní River Tapenagá River Palometa River Santa Lucía River Negro River Guaycurú River Paraguay River Río de Oro Bermejo River (Teuco River) Bermejito River Dorado River Teuquito River Seco River San Francisco River Grande River Mojotoro River (Lavayén River) Pescado River Iruya River Río Grande de Tarija Itaú River Lipeo River Pilcomayo River Pilaya River (Bolivia) San Juan del Oro River (Bolivia) Río Grande de San Juan Urugua-í River Iguazu River San Antonio River Luján River Reconquista River Matanza River (Riachuelo) Samborombón Bay Samborombón River Salado River
Atlantic Ocean - Patagonia
Quequén Grande River
Sauce Grande River
Naposta Stream
Sauce Chico River
Colorado River
Desaguadero River (Salado River, Bermejo River, Vinchina River) (usually does not reach the Colorado) Atuel River Diamante River Tunuyán River San Juan River Mendoza River Tupungato River Castaño Viejo River Calingasta River Río de los Patos Blanco River Jáchal River Blanco River Huaco River Barrancas River Grande River Río Negro Neuquén River Agrio River Limay River Collón Curá River Aluminé River Chimehuin River Traful River Chubut River Chico River Senguerr River Mayo River Guenguel River Tecka River Chico River Deseado River Pinturas River Fénix Grande River Santa Cruz River Chico River Chalía River (Shehuen River) Belgrano River La Leona River Coig River (Coyle River) Pelque River Gallegos River Chico River Grande River Fuego River
Pacific Ocean (Argentina - Chile)
Futaleufú River
Percey River
Corintos River
Hua-Hum River
Mayer River
Palena River
Pico River
Puelo River
Simpson River
Vizcachas River
Interior basins
Carapari River
Itiyuro River
Tartagal River
Salado River (Colorado River) Belén River Abaucán River Mar Chiquita (Córdoba) Dulce River Saladillo River Salí River Primero River (Suquía River) Cosquín River Segundo River (Xanaes River) Cruz del Eje River Conlara River Quinto River (Popopis River) Malargüe River