| Half Pint Allen | |
| Position: | Pitcher |
| Bats: | Unknown |
| Throws: | Left |
| Debutleague: | Negro league baseball |
| Debutyear: | 1932 |
| Debutteam: | Baltimore Black Sox |
| Finalyear: | 1934 |
| Finalteam: | Baltimore Black Sox |
| Teams: |
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Melvin "Half Pint" "Lefty" Allen was an American baseball pitcher in the Negro leagues. He played with the Baltimore Black Sox in 1932 and 1934.