Donald Kirk Blackmon (born March 14, 1958) is an American former professional football player and coach in the National Football League (NFL).

Most recently he was the defensive coordinator for the New York Sentinels of the United Football League (UFL).

Blackmon was selected by the New England Patriots in the fourth round of the 1981 NFL draft.

linebacker from the University of Tulsa, Blackmon played his entire NFL career for the Patriots.

Blackmon was a three time all-conference selection at Tulsa and has been named to the school's Hall of Fame.