| Jack Corcoran | |
| Position: | Catcher |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | 15 May 1858 |
| Birth Place: | Lowell, Massachusetts, US |
| Death Place: | Jersey City, New Jersey, US |
| Debutleague: | MLB |
| Debutdate: | May 1 |
| Debutteam: | Brooklyn Atlantics |
| Finalleague: | MLB |
| Finaldate: | October 13 |
| Finalteam: | Brooklyn Atlantics |
| Statleague: | MLB |
| Stat1label: | Games |
| Stat1value: | 52 |
| Stat2label: | Batting average |
| Stat2value: | .211 |
| Stat3label: | Runs scored |
| Stat3value: | 17 |
| Teams: |
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John H. Corcoran (May 15, 1858 - December 28, 1935), was an American catcher in Major League Baseball who played for the Brooklyn Atlantics during the season. This was his only season in the Majors.[1] He did play professional baseball in various minor and independent leagues from 1882–1899.