| Río Negro | |
| Native Name Lang: | es |
| Settlement Type: | City and Commune |
| Flag Alt: | Flag |
| Shield Alt: | Coat of arms |
| Map Alt: | Location of Río Negro commune in Los Lagos Region |
| Pushpin Map Narrow: | yes |
| Pushpin Map: | Chile |
| Pushpin Label Position: | bottom |
| Pushpin Map Alt: | Location in Chile |
| Pushpin Map Caption: | Location in Chile |
| Coordinates: | -40.7833°N -85°W |
| Coor Pinpoint: | city |
| Subdivision Type: | Country |
| Subdivision Name: | Chile |
| Subdivision Type1: | Region |
| Subdivision Name1: | Los Lagos |
| Subdivision Type2: | Province |
| Subdivision Name2: | Osorno Province |
| Established Title: | Founded |
| Established Date: | March 12, 1896 |
| Government Footnotes: | [1] |
| Government Type: | Municipality |
| Leader Party: | RN |
| Leader Title: | Alcalde |
| Leader Name: | Carlos Schwalm Urzúa |
| Unit Pref: | Metric |
| Area Footnotes: | [2] |
| Area Total Km2: | 1265.7 |
| Population Total: | 14732 |
| Population As Of: | 2002 Census |
| Population Density Km2: | auto |
| Population Blank1 Title: | Urban |
| Population Blank1: | 6583 |
| Population Blank2 Title: | Rural |
| Population Blank2: | 8149 |
| Demographics Type1: | Sex |
| Demographics1 Title1: | Men |
| Demographics1 Info1: | 7,528 |
| Demographics1 Title2: | Women |
| Demographics1 Info2: | 7,204 |
| Population Demonym: | Rionegrino |
| Timezone: | CLT |
| Utc Offset: | −4 |
| Timezone Dst: | CLST |
| Utc Offset Dst: | −3 |
| Area Code: | 56 + 64 |
| Blank Name: | Climate |
| Blank Info: | Cfb |
| Website: | Municipality of Rio Negro |
Río Negro (pronounced as /es/, English: Black River) is a Chilean city and commune in Osorno Province, Los Lagos Region. The city is located 38 km south of Osorno and 6 km west of Route 5. It has an area of 1,266 km² and a population of 14,732 inhabitants (7,204 women and 7,528 men according to census 2002).
The commune is bordered on the north by Osorno and San Juan de la Costa, on the east by Puerto Octay, on the west by the Pacific Ocean, and on the south by Purranque.
In the 19th century, the commune was a property located between Chahuilco and Purranque called Curileufu by the Huilliche. The town was founded on lands donated by Jose Miguel Alderete in the year 1896. The first alcalde (mayor) was Pedro González.
According to the 2002 census of the National Statistics Institute, Río Negro spans an area of 1265.7sqkm and has 14,732 inhabitants (7,528 men and 7,204 women). Of these, 6,583 (44.7%) lived in urban areas and 8,149 (55.3%) in rural areas. The population fell by 8.1% (1294 persons) between the 1992 and 2002 censuses.[2]
As a commune, Río Negro is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is Carlos Schwalm Urzúa (RN). The council has the following members:[1]
Within the electoral divisions of Chile, Río Negro is represented in the Chamber of Deputies by Fidel Espinoza (PS) and Carlos Recondo (UDI) as part of the 56th electoral district, together with Puyehue, Purranque, Puerto Octay, Fresia, Frutillar, Llanquihue, Puerto Varas and Los Muermos. The commune is represented in the Senate by Camilo Escalona Medina (PS) and Carlos Kuschel Silva (RN) as part of the 17th senatorial constituency (Los Lagos Region).
The climate is oceanic (Köppen: Cfb), with average temperatures of 11.4 °C.