|Date of birth||1898|
|Place of birth||Kansas|
|Date of death||April 30, 1960|
|Place of death||Dubuque, Iowa|
|Position(s)||End, Halfback, Quarterback|
|College||University of Dubuque|
|Head coaching record|
|Team(s) as a player|
|1923–1926||Rock Island Independents|
|Team(s) as a coach/administrator|
|1924||Rock Island Independents|
John A. Armstrong, Jr. (1898 – April 30, 1960) was an American football player and coach. He played on the Rock Island Independents of the National Football League, and later the first American Football League, from 1923–1926. In 1924, Armstrong coached the Independents to a 5–2–2 record, and a fifth-place finish.
- "Johnny Armstrong". Database Football. http://www.databasefootball.com/players/playerpage.htm?ilkid=ARMSTJOH01. Retrieved 2008-11-19.
- "John Armstrong". Baseball-Reference. http://www.baseball-reference.com/minors/player.cgi?id=armstr002joh. Retrieved 2011-02-24.
- "John Armstrong Coaching Results". Pro Football Reference. http://www.pro-football-reference.com/coaches/ArmsJo0.htm. Retrieved 2008-11-19.
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