List of 1921 motorsport champions
| 1921 motorsport champions | |
| Previous: 1920 | Next: 1922 |
This list of 1921 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races.
Open wheel racing[edit]
| Series | Driver | Season article |
|---|---|---|
| AAA National Championship |  Tommy Milton
|
1921 AAA Championship Car season |