| Frank Quinlan | |
| Position: | Catcher/Left fielder |
| Birth Date: | March 8, 1869 |
| Birth Place: | Marlborough, Massachusetts |
| Death Place: | Brockton, Massachusetts |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | October 5 |
| Debutyear: | 1891 |
| Debutteam: | Boston Reds |
| Finalleague: | MLB |
| Finaldate: | October 5 |
| Finalyear: | 1891 |
| Finalteam: | Boston Reds |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .000 |
| Stat2label: | At bats |
| Stat2value: | 5 |
| Teams: |
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Francis Patrick Quinlan (March 9, 1869 – May 4, 1904) was a Major League Baseball player who played for one season. He played two games for the Boston Reds for two games on October 5, 1891 during the Reds' American Association championship. During the doubleheader, he played one game as a catcher and another game as a left fielder.