| Henry Keupper | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | June 24, 1887 |
| Birth Place: | Staunton, Illinois, US |
| Death Place: | Marion, Illinois, US |
| Debutleague: | MLB |
| Debutdate: | April 19 |
| Debutyear: | 1914 |
| Debutteam: | St. Louis Terriers |
| Finalleague: | MLB |
| Finaldate: | October 6 |
| Finalyear: | 1914 |
| Finalteam: | St. Louis Terriers |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 8–20 |
| Stat2label: | Strikeouts |
| Stat2value: | 70 |
| Stat3label: | Earned run average |
| Stat3value: | 4.27 |
| Teams: | |
Henry John Keupper (July 24, 1887 – August 14, 1960), was a professional baseball player who played pitcher in the Major Leagues in . He would play for the St. Louis Terriers.
Keupper played semi-professional baseball in Southern Illinois until friends recommended him to Frank Donnelly, manager of the Peoria Distillers, who happened to be in Southern Illinois on a hunting trip. His proponents compared him to Orval Overall and Donnelly gave him his first job in professional baseball with the Distillers.[1]