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.

Biography

A native of Cincinnati, Ohio, 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.