1921 APFA season
| Regular season | |
|---|---|
| Duration | September 25 – December 18, 1921 |
| Champions | Chicago Staleys |
Pros
All-Americans
Bulldogs
Cardinals
Staleys
Indians
Panhandles
Triangles
Tigers
Crimson Giants
Packers
Flyers
Brecks
Marines
Brickley Giants
Jeffersons
Independents
Senators
Traveling teams
Celts
Pros
Kardex
Celts
Pros
Kardex
APFA teams
The 1921 APFA season was the second season of the American Professional Football Association (APFA), which was renamed the National Football League in 1922.
The Staleys, who moved their base of operations from Decatur, Illinois, to Chicago mid-season, were named the APFA Champions over the Buffalo All-Americans.