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. He played college baseball at Amherst College.
Jack Dunleavy
| Given name: | John Francis Dunleavy |
| Nicknames: | None |
| Primary Pos: | Rightfield |
| Hght/Wght: | 5'6" / 167 lbs |
| Bats/Throws: | L / L |
| Born: | Sep 14, 1879 in Harrison, NJ |
| Died: | Apr 11, 1944 in South Norwalk, CT (64 years old) |
| Debut: | May 30, 1903 |