| Warren Fitzgerald | |
| Position: | Pitcher |
| Bats: | Unknown |
| Throws: | Left |
| Birth Date: | April 1868 |
| Birth Place: | Pennsylvania, U.S. |
| Death Place: | Phoenix, Arizona, U.S. |
| Debutleague: | MLB |
| Debutdate: | June 4 |
| Debutyear: | 1891 |
| Debutteam: | Louisville Colonels |
| Finalleague: | MLB |
| Finaldate: | June 8 |
| Finalyear: | 1892 |
| Finalteam: | Louisville Colonels |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 15–20 |
| Stat2label: | Earned run average |
| Stat2value: | 3.44 |
| Stat3label: | Strikeouts |
| Stat3value: | 113 |
| Teams: |
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Warren Bartholomew Fitzgerald (April 1868 – November 7, 1930) was an American Major League Baseball pitcher. He played in the majors for the Louisville Colonels during the 1891 and 1892 seasons.