Julio Montero Castillo

Julio Walter Montero Castillo (born 25 April 1944, in Montevideo) is a Uruguayan former international footballer who played as a defender.

He started his career with Liverpool FC (Montevideo), before joining Nacional in 1966. He later played for Independiente of Argentina, and Spanish side Granada. He made 64 La Liga appearances for Granada between 1973 and 1975, scoring two goals.

He made a total of 68 Copa Libertadores appearances between 1966 and 1973.

He represented the Uruguay national football team in the 1970 FIFA World Cup (playing in all six matches) and the 1974 FIFA World Cup.

Montero Castillo is the father of the international footballer Paolo Montero.