Río Negro Province
| Río Negro | |
|---|---|
| Province of Río Negro Provincia de Río Negro (Spanish) | |
| View of Nahuel Huapi Lake | |
|  | |
| Coordinates: 40°48′S 63°00′W / 40.800°S 63.000°W | |
| Country | Argentina | 
| Capital | Viedma | 
| Divisions | 13 departments | 
| Government | |
| • Governor | Alberto Weretilneck (JSRN) | 
| • Vice Governor | Pedro Oscar Pesatti (PJ) | 
| • Legislature | 46 | 
| • National Deputies | 5 | 
| • National Senators | Claudio Doñate (UP) Silvina García Larraburu (UP) Mónica Silva (JSRN) | 
| Area | |
|  • Total | 203,013 km2 (78,384 sq mi) | 
| Population  (2022 census) | |
|  • Total | 762,067 | 
| • Rank | 15th | 
| • Density | 3.8/km2 (9.7/sq mi) | 
| Demonym | Rionegrino | 
| GDP | |
| • Total | peso 111 billion (US$6.7 billion) (2018) | 
| Time zone | ART | 
| ISO 3166 code | AR-R | 
| HDI (2021) | 0.844 very high (7th) | 
| Website | rionegro | 
Río Negro (Spanish pronunciation: [ˈri.o ˈneɣɾo], Black River) is a province of Argentina, located in northern Patagonia. Neighboring provinces are from the south clockwise Chubut, Neuquén, Mendoza, La Pampa and Buenos Aires. To the east lies the Atlantic Ocean.
Its capital is Viedma near the Atlantic outlet of the province's namesake river in the eastern extreme. The largest city is in the Andean foothills Bariloche in the far west. Other important cities include General Roca and Cipolletti.