Rio Negro

Río Negro means "Black River" in Spanish; Rio Negro means the same in Portuguese. They may refer to:

Rivers

Río Negro (Central America), forming part of the border between Honduras and Nicaragua
Chixoy River, also known as the Río Negro, in Guatemala

Río Negro Province, Argentina
Rio Negro, Paraná, a municipality in Brazil
Rio Negro, Mato Grosso do Sul, a municipality in Brazil
Río Negro, Chile, a city and commune in Osorno Province
Rionegro, a city and municipality in Colombia
Rionegro, Santander, a town and municipality in Colombia
Rionegro Province, Colombia
Río Negro Department, Uruguay
Río Negro Municipality, Venezuela
Captaincy of Sao Jose do Rio Negro, a Portuguese colonial administration in Brazil
Rio Negro Province, Brazil, a province of the State of Brazil, 19th century
District of Rio Negro, a judicial district or comerca of Brazil, 19th century

Río Negro (newspaper), published in Argentina
Rio Negro (music), A sound poetry band from Stockholm, Sweden
Atlético Rio Negro Clube, a Brazilian football team from Manaus, Amazonas state
Rionegro (TransMilenio) a TransMilenio transportation system station in Bogotá, Colombia
Río Negro Massacre, Guatemala
Rio Negro tuco-tuco, a species of rodent
Río Negro National Park in Paraguay
Rio Negro Brush-tailed Rat, a species of rodent
Palácio Rio Negro, one of the official residences of the President of Brazil
Río Negro (film), a 1976 Cuban film
Río Negro Airport in Chile