| John Sullivan | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 31 May 1894 |
| Birth Place: | Chicago, Illinois |
| Death Place: | Chicago, Illinois |
| Debutleague: | MLB |
| Debutdate: | July 19 |
| Debutteam: | Chicago White Sox |
| Finalleague: | MLB |
| Finaldate: | September 26 |
| Finalteam: | Chicago White Sox |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0-1 |
| Stat2label: | Earned run average |
| Stat2value: | 4.20 |
| Stat3label: | Strikeouts |
| Stat3value: | 9 |
| Teams: |
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John Jeremiah "Lefty" Sullivan (May 31, 1894 – July 7, 1958) was a pitcher in Major League Baseball. He played for the Chicago White Sox in 1919.[1]