| John Dillon | |
| Position: | Shortstop |
| Birth Place: | St. Louis, Missouri |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | May 8 |
| Debutyear: | 1875 |
| Debutteam: | St. Louis Red Stockings |
| Finalleague: | MLB |
| Finaldate: | May 8 |
| Finalyear: | 1875 |
| Finalteam: | St. Louis Red Stockings |
| Statleague: | MLB |
| Stat1label: | At bats |
| Stat1value: | 1 |
| Stat2label: | RBI |
| Stat2value: | 0 |
| Stat3label: | Home Runs |
| Stat3value: | 0 |
| Stat4label: | Batting average |
| Stat4value: | .000 |
| Teams: | |
John Dillon was an American professional baseball shortstop who played in one game for the 1875 St. Louis Red Stockings. His brother Packy Dillon also played for the Red Stockings.