John Laurence Gallagher (January 28, 1902 Providence, Rhode Island – September 10, 1984 Gladwyne, Pennsylvania) was a Major League Baseball outfielder who played for the Cleveland Indians for one season. He played for one game during the 1923 Cleveland Indians season on August 24, 1923. A single left Gallagher with a rare MLB career batting average of 1.000.
Jackie Gallagher
| Given name: | John Laurence Gallagher |
| Nicknames: | None |
| Primary Pos: | Rightfield |
| Hght/Wght: | 5'10" / 175 lbs |
| Bats/Throws: | L / R |
| Born: | Jan 28, 1902 in Providence, RI |
| Died: | Sep 10, 1984 in Gladwyne, PA (82 years old) |
| Debut: | Aug 24, 1923 |