| George Rettger | |
| Birth Date: | 29 July 1868 |
| Birth Place: | Cleveland, Ohio |
| Death Place: | Lakewood, Ohio |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | August 13 |
| Debutyear: | 1891 |
| Debutteam: | St. Louis Browns |
| Finalleague: | MLB |
| Finaldate: | July 16 |
| Finalyear: | 1892 |
| Finalteam: | Cincinnati Reds |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat2label: | ERA |
| Stat3label: | Strikeouts |
| Stat1value: | 9-6 |
| Stat2value: | 3.67 |
| Stat3value: | 62 |
| Teams: |
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George Edward Rettger (July 29, 1868 – June 5, 1921) was a 19th-century Major League Baseball pitcher.