The 1940 season was the Chicago Bears' 21st in the National Football League.
The team matched on their 8–3 record from 1939 under head coach George Halas.
This was the first of four consecutive NFL Western titles for the Bears.
The Bears selected Clyde "Bulldog" Turner with their first round pick in the 1940 NFL draft.
He would be with the Bears for four Championships and be inducted into the Pro Football Hall of Fame in 1966.