Michael Anthony Diaz
- Bats Right, Throws Right
- Height 6' 2", Weight 195 lb.
- High School Terra Nova High School (Pacifica)
- Debut September 15, 1983
- Final Game October 2, 1988
- Born April 15, 1960 in San Francisco, CA USA
Mike Diaz led the Pittsburgh Pirates in pinch hits in 1986 with 11. He knocked in 10 pinch hit runs that year too. As a rookie in 1986, he hit one home run every 17.6 at-bats - 4th best in the league.
He was a Pacific Coast League All-Star in 1985.