| Bill Swarback | |
| Birth Date: | October 1867 |
| Birth Place: | New York City |
| Death Place: | Stamford, Connecticut |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | July 9 |
| Debutyear: | 1887 |
| Debutteam: | New York Giants |
| Finalleague: | MLB |
| Finaldate: | July 12 |
| Finalyear: | 1887 |
| Finalteam: | New York Giants |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0-2 |
| Stat2label: | Earned run average |
| Stat2value: | 5.06 |
| Stat3label: | Strikeouts |
| Stat3value: | 6 |
| Teams: |
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William Swarback (1867–1949) was a 19th-century Major League Baseball player. He played for the New York Giants in 1887.