Neill Ford Armstrong (March 9, 1926 – August 10, 2016) was an American football player and coach whose career spanned more than four decades at both the college and professional levels.

Armstrong played college football at Oklahoma A & M from 1943 to 1946, and was chosen in the first round (eighth overall) of the 1947 NFL draft by the Philadelphia Eagles.

[1] Armstrong was hired as an assistant with the Minnesota Vikings in 1970,[1] and became an integral part of developing the team's dominating defense.

After helping the team reach the postseason in all but one of the next eight years, he was hired as head coach of the Chicago Bears on February 16, 1978.

[2] He and Bud Grant hold the distinction of being the only two people to have both played and been a head coach in both the NFL and CFL.