Ronald Michael Diorio (born July 15, 1946), and attended Sacred Heart High School in Waterbury, Connecticut. He played Major League Baseball (MLB) for the Philadelphia Phillies, in 1973 and 1974. He batted and threw right-handed.
Diorio was drafted by the Phillies in the 16th round (366th overall) of the 1969 Major League Baseball draft, out of the University of New Haven. other picks were hall of famers Bert Blyleven and Dave Winfield
Diorio logged a 0–0 record, with a 3.10 earned run average (ERA), in 25 games played, over the course of his two-year big league career.