| Gus Krock | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | May 9, 1866 |
| Birth Place: | Milwaukee, Wisconsin, U.S. |
| Death Place: | Pasadena, California, U.S. |
| Debutleague: | MLB |
| Debutdate: | April 24 |
| Debutyear: | 1888 |
| Debutteam: | Chicago White Stockings |
| Finalleague: | MLB |
| Finaldate: | July 26 |
| Finalyear: | 1890 |
| Finalteam: | Buffalo Bisons |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 32–26 |
| Stat2label: | Earned run average |
| Stat2value: | 3.49 |
| Stat3label: | Strikeouts |
| Stat3value: | 209 |
| Teams: |
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August H. Krock (May 9, 1866 – March 22, 1905) was an American Major League Baseball pitcher. He played three seasons, from to, for the Chicago White Stockings, Indianapolis Hoosiers, Washington Nationals, and Buffalo Bisons. In Krock's debut season, 1888 with the White Stockings, he had 25 wins and 14 losses.