Look up Río de la Plata in Wiktionary, the free dictionary.
The Río de la Plata (River Plate) is a river estuary in Argentina and Uruguay.
Río de la Plata may also refer to:
- United Provinces of the Río de la Plata, a short lived nation in South America between 1810-1831
- Río de la Plata Basin, the hydrographical area that covers parts of Argentina, Brazil, Bolivia, Paraguay and Uruguay
- Río de la Plata Craton, one of the five cratons (ancient nuclei) of the South American continent
- Viceroyalty of the Río de la Plata, an administrative district within the Spanish empire
- Governorate of the Río de la Plata, an administrative district preceding the viceroyalty
- Río de la Plata Bank, a building in Madrid by Antonio Palacios
- Río de la Plata (Puerto Rico), a river in Puerto Rico
- La Plata River (San Juan River), in the United States