Isidro Monge Pedroza (born April 11, 1951) is a Mexican former Major League Baseball relief pitcher who pitched from 1975 to 1984.

He played Major League Baseball (MLB) for the California Angels, Cleveland Indians, Philadelphia Phillies, San Diego Padres and Detroit Tigers.

[1] Monge was called up to the Angels after going 14–9 with a 4.63 ERA for the Salt Lake City Gulls of the Pacific Coast League, and made his major league debut on September 12, 1975 against the Kansas City Royals at Royals Stadium pitching 4+1⁄3 innings in relief of Bill Singer getting no decision.

Hall of Famer Tony Gwynn of the San Diego Padres got his first hit off Monge on July 19, 1982 while he was pitching for the Philadelphia Phillies.

In the offseason, Monge works in the Mexican Winter League, coaching at third for the Venados de Mazatlán.