Zachary Charles Monroe (July 8, 1931 in Peoria, Illinois) is a former professional baseball player. He was a pitcher over parts of 2 seasons in Major League Baseball (1958–59) with the New York Yankees. Monroe was a member of the 1958 World Series champion Yankees. An alumnus of Bradley University, for his career he compiled an 4–2 record with a 3.38 earned run average and 19 strikeouts in 24 appearances.