| Doc Scanlan | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 7 March 1881 |
| Birth Place: | Syracuse, New York |
| Death Place: | Brooklyn, New York |
| Debutleague: | MLB |
| Debutdate: | September 24 |
| Debutyear: | 1903 |
| Debutteam: | Pittsburgh Pirates |
| Finalleague: | MLB |
| Finaldate: | September 1 |
| Finalyear: | 1911 |
| Finalteam: | Brooklyn Dodgers |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 65–71 |
| Stat2label: | Earned run average |
| Stat2value: | 3.00 |
| Stat3label: | Strikeouts |
| Stat3value: | 584 |
| Teams: |
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William Dennis Scanlan (March 7, 1881 – May 29, 1949) was a pitcher in Major League Baseball. Scanlan pitched from 1903–1911 with the Pittsburgh Pirates and Brooklyn Dodgers.