United States

• Rio Blanco (Colorado) & Rio Blanco County, Colorado
  Rio Blanco County, Colorado
  Rio Blanco County is the sixth most extensive of the 64 counties of the State of Colorado of the United States. The county population was 5,986 at U.S. Census 2000. The name of the county is the Spanish language name for the White River which runs through it...
  
  
  • Rio Blanco Oil Shale Company
    Rio Blanco Oil Shale Company
    The Rio Blanco Oil Shale Company was an American shale oil extraction technology technology research and development company. The company was established as a general partnership of Gulf Oil and Standard Oil of Indiana...
    
    
• Rio Blanco, Puerto Rico
• Blanco River (Texas)

Uruguay

• what would be the native (Spanish) name of the city of Río Branco, Uruguay
  Río Branco, Uruguay
  Río Branco is a city in the Cerro Largo Department of northeastern Uruguay. It is located on the border with Brazil, at the east end of Route 26, about east-southeast of the department capital city of Melo...
  
  , actually named in Portuguese in honor of a Brazilian diplomat