William Anthony Roman (born October 11, 1938) is a retired Major League Baseball player who was a first baseman and pinch hitter during portions of the 1964 and 1965 seasons for the Detroit Tigers. The native of Detroit attended the University of Michigan, stood 6 feet 4 inches (1.93 m) tall and weighed 190 pounds (86 kg). He threw and batted left-handed.

Roman hit a home run in his first Major League at bat, as a pinch hitter on September 30, 1964, against Jim Bouton of the New York Yankees. Although a standout hitter (.290) in minor league baseball over six seasons between 1960 and 1965, Roman collected only five total hits in 35 at-bats during his two trials for the Tigers.