Harold E. "Butch" Woolfolk (born March 1, 1960) is a former American football running back and kick returner who played in college for the University of Michigan (1978–1981) and in the National Football League (NFL) for the New York Giants (1982–1984), Houston Oilers (1985–1986) and Detroit Lions (1987–1988). Woolfolk attended Westfield Senior High School in Westfield, New Jersey. Woolfolk led Michigan in rushing three straight years and set the school record with 3,850 rushing yards while playing for the Wolverines from 1978 to 1981. As a sophomore in 1979, he was the Big Ten Conference scoring champion, and he went on to become a three-time first-team All-Big Ten selection. He had his best season as a senior at Michigan, winning the 1981 Big Ten rushing title and falling just 10 yards sh