Leonard Matarazzo (September 12, 1928 – June 19, 2015) was an American professional baseball player.

Pitching for the Philadelphia Athletics, he worked one scoreless inning in relief against the Boston Red Sox.

But he was not given another opportunity to pitch that year and spent the final two seasons of his six-year pro career in the minor leagues.

In his only MLB appearance, at Fenway Park, he pitched the bottom of the eighth inning against the Red Sox in a game the Athletics were trailing, 6–4.

He allowed an infield single to Dom DiMaggio and a base on balls to Billy Goodman, but retired Mel Parnell, Al Zarilla and Vern Stephens to escape unscathed.