Harrison (born March 14, 1954, at Long Beach, California) is an American front-office executive in Major League Baseball.
He stood 6 feet 7 inches (2.01 m) tall, weighed 210 pounds (95 kg), threw right-handed and batted left-handed.
He graduated from Robert A. Millikan Senior High School of Long Beach in 1972 and attended Arizona State University, where he played catcher on the Sun Devils' varsity baseball team from 1973–1975.
Harrison turned professional with the St. Louis Cardinals as a catcher in 1975, but by the middle of his second season in the Redbird farm system he had converted to pitcher.
In 1978 he landed on the disabled list of the Double-A Arkansas Travelers for the last six weeks of the season, and was released by the Cardinals prior to the 1979 campaign.