| Charlie Armbruster | |
| Position: | Catcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 30 August 1880 |
| Birth Place: | Cincinnati, Ohio, US |
| Death Place: | Grants Pass, Oregon, US |
| Debutleague: | MLB |
| Debutdate: | July 17 |
| Debutyear: | 1905 |
| Debutteam: | Boston Americans |
| Finalleague: | MLB |
| Finaldate: | September 11 |
| Finalyear: | 1907 |
| Finalteam: | Chicago White Sox |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .149 |
| Stat2label: | Hits |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 12 |
| Teams: |
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Charles A. Armbruster (August 30, 1880 – October 7, 1964) was a backup catcher in Major League Baseball who played from 1905 through 1907 for the Boston Americans and the Chicago White Sox.
A native of Cincinnati, Ohio,[1] Ambruster shared catching duties with Lou Criger for the Boston Americans in part of three seasons. In 1906 he appeared in a career-high 72 games and hit .144 (21-for-201). In a three-year career, Ambruster was a .149 hitter (53-for-355) with 24 runs and 12 RBI in 131 games. He batted and threw right-handed. Ambruster died in Grants Pass, Oregon at the age of 84.