| Harry Mace | |
| Position: | Pitcher |
| Bats: | Unknown |
| Throws: | Right |
| Birth Date: | August 1866 |
| Birth Place: | Washington, D.C. |
| Death Place: | Norfolk, Virginia |
| Debutleague: | MLB |
| Debutdate: | May 5 |
| Debutyear: | 1891 |
| Debutteam: | Washington Statesmen |
| Finalleague: | MLB |
| Finaldate: | May 13 |
| Finalyear: | 1891 |
| Finalteam: | Washington Statesmen |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–1 |
| Stat2label: | Strikeouts |
| Stat2value: | 3 |
| Stat3label: | Earned run average |
| Stat3value: | 7.31 |
| Teams: | |
Harry F. Mace (August 1866 – April 26, 1930) was a pitcher in Major League Baseball for the 1891 Washington Statesmen. He played in the minors from 1889–1895 and managed in 1902.