| Jack Dunleavy | |
| Position: | Outfielder / Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 14 September 1879 |
| Birth Place: | Harrison, New Jersey |
| Death Place: | South Norwalk, Connecticut |
| Debutleague: | MLB |
| Debutdate: | May 30 |
| Debutteam: | St. Louis Cardinals |
| Finalleague: | MLB |
| Finaldate: | October 8 |
| Finalteam: | St. Louis Cardinals |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .241 |
| Stat2label: | Runs batted in |
| Stat2value: | 49 |
| Stat3label: | Win–loss record |
| Stat3value: | 7–12 |
| Teams: |
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John Francis Dunleavy (September 14, 1879 – April 11, 1944) was an outfielder and pitcher in Major League Baseball. He played for the St. Louis Cardinals from 1903 to 1905.[1] He played college baseball at Amherst College.[2]