Dummy was a popular nickname for the following deaf Major League Baseball players:
Dummy Deegan (1874–1957) a pitcher for two games
Ed Dundon (1859–1893), an American Association pitcher credited with being the first deaf player in Major League Baseball history
Dummy Hoy (1862–1961), a deaf center fielder
Dummy Leitner (1871–1960), a deaf pitcher
Dummy Lynch (1926–1978), a second baseman
Dummy Murphy (1886–1962), a shortstop
Dummy Stephenson (1869–1924), an outfielder
Dummy Taylor (1875–1958), a deaf-mute pitcher