Rubén Toribio Díaz Rivas (born 17 April 1952 in Lima) is a retired professional footballer from Peru who played as a defender.
Díaz played for Deportivo Municipal, Universitario de Deportes and Sporting Cristal in Peru. During his time with Sporting Cristal he was part of three league championship winning campaigns (1979, 1980 & 1983).
He competed for the Peru national football team at the 1978 and 1982 FIFA World Cup. He was part of the Peru team that won the Copa América in 1975.[1] He made a total of 89 appearances for Peru, making him the 10th most capped player for the Peru team (as of April 2021).[2]