Mario Díaz may refer to:
- Mario Díaz (baseball) (born 1962), Major League Baseball infielder
- Mario Díaz (discus thrower) (born 1999), Cuban discus thrower
- Mario Díaz Martínez (born 1965), Spanish member of the World Scout Committee
- Mario Díaz Pérez (born 1960), Mexican football manager and former player
See also
edit- Mario Díaz-Balart (born 1961), member of the U.S. House of Representatives from Florida