| John Barrett | |
| Position: | Left fielder |
| Birth Date: | Unknown |
| Birth Place: | Brooklyn, New York |
| Death Date: | Unknown |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | September 18 |
| Debutyear: | 1872, |
| Debutteam: | Brooklyn Atlantics |
| Finalleague: | MLB |
| Finaldate: | October 31 |
| Finalyear: | 1872, |
| Finalteam: | Brooklyn Atlantics |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .206 |
| Stat2label: | Hits |
| Stat2value: | 7 |
| Stat3label: | Runs scored |
| Stat3value: | 6 |
| Teams: | |
John Barrett was an American professional left fielder for the Brooklyn Atlantics of the National Association.[1] He played in eight games from September 18 to October 31, seven of which were in left field, and gathered seven hits in 34 at bats for a .206 batting average.[1]