| Harold Treadwell | |
| Position: | Pitcher |
| Birth Date: | April 21, 1897 |
| Birth Place: | Huntington, New York, US |
| Bats: | Unknown |
| Throws: | Right |
| Debutleague: | Negro league baseball |
| Debutyear: | 1919 |
| Debutteam: | Lincoln Giants |
| Finalyear: | 1928 |
| Finalteam: | Chicago American Giants |
| Teams: |
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Harold E. Treadwell (April 21, 1897 – year of death unknown) was an American baseball pitcher in the Negro leagues. He played from 1919 to 1928 with several teams.[1]
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