Luis Barrancos Álvarez (born August 19, 1946) is a retired Bolivian football referee. He is known for having refereed one match in the 1982 FIFA World Cup in Spain.Barrancos is known to have served as a FIFA referee during the period from 1975 to 1987. He officiated at the 1979 and 1987 Copa America tournaments, as well as qualifying matches for the 1978, 1982, and 1986 World Cups.Barrancos was a panelist at CONMEBOL's 'Futuro III' referee's conference in Buenos Aires in May 2008.