| Frank Knauss | |
| Birth Date: | 1868 |
| Birth Place: | Cleveland, Ohio |
| Death Date: | Unknown |
| Bats: | Left |
| Throws: | Left |
| Debutleague: | MLB |
| Debutdate: | June 25 |
| Debutyear: | 1890 |
| Debutteam: | Columbus Solons |
| Finalleague: | MLB |
| Finaldate: | May 29 |
| Finalyear: | 1895 |
| Finalteam: | New York Giants |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat2label: | Earned run average |
| Stat3label: | Strikeouts |
| Stat1value: | 17-16 |
| Stat2value: | 3.30 |
| Stat3value: | 159 |
| Teams: |
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Frank H. Knauss (born 1868) was a 19th-century Major League Baseball pitcher from 1890 to 1895.