| Elmer Leonard | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 12 November 1888 |
| Birth Place: | Napa, California |
| Death Place: | Napa, California |
| Debutleague: | MLB |
| Debutdate: | June 22 |
| Debutyear: | 1911 |
| Debutteam: | Philadelphia Athletics |
| Finalleague: | MLB |
| Finaldate: | July 27 |
| Finalyear: | 1911 |
| Finalteam: | Philadelphia Athletics |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 2–2 |
| Stat2label: | Earned run average |
| Stat2value: | 2.84 |
| Stat3label: | Strikeouts |
| Stat3value: | 10 |
| Teams: |
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Elmer Ellsworth Leonard (November 12, 1888 – May 27, 1981), nicknamed "Tiny", was an American Major League Baseball pitcher. He played for the Philadelphia Athletics during the season.