| Fred Schemanske | |
| Position: | Pitcher/Pinch hitter |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 28 April 1903 |
| Birth Place: | Detroit, Michigan |
| Death Place: | Detroit, Michigan |
| Debutleague: | MLB |
| Debutdate: | September 15 |
| Debutteam: | Washington Senators |
| Finalleague: | MLB |
| Finaldate: | October 3 |
| Finalteam: | Washington Senators |
| Statleague: | MLB |
| Stat1label: | At bats |
| Stat1value: | 2 |
| Stat2label: | Hits |
| Stat2value: | 2 |
| Stat3label: | Innings pitched |
| Stat3value: | 1.0 |
| Teams: |
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Frederick George Schemanske (April 28, 1903 – February 18, 1960), nicknamed "Buck", was a Major League Baseball player who played for the Washington Senators in . He played in two games, one as a pitcher and one as a pinch hitter.
Singles in his only two at-bats left Schemanske with a rare MLB career batting average of 1.000.