| 1921 St. Louis Cardinals | ||
|---|---|---|
| League | National League | |
| Ballpark | Sportsman's Park | |
| City | St. Louis, Missouri | |
| Record | 87–66 (.569) | |
| League place | 3rd | |
| Owners | Sam Breadon | |
| Managers | Branch Rickey | |
| ||
The 1921 St. Louis Cardinals season was the team's 40th season in St. Louis, Missouri and the 30th season in the National League. The Cardinals went 87–66 during the season and finished third in the National League.