William Charles Mackie (October 1, 1870 – August 1, 1931) was an American college football player and coach.
He was an All-American guard at Harvard University and served as the head football coach at Bowdoin College.
Before his first season with the team, Walter Camp described Mackie as "strong and active, knows what is required of him in both offence and defence, particularly the latter, and would steady up Harvard's center more than any man that could be selected".
[5] Mackie was named to the 1894 College Football All-America Team by John D. Merrill of Leslie's Weekly and S. V. R. Crosby of The Boston Daily Globe.
During World War I, Mackie also served as Brookline's draft board examiner and was a member of the Volunteer Medical Corps.