William or Bill Sweeney may refer to: Bill Sweeney (first baseman) (1904–1957), baseball player Bill Sweeney (footballer) (1914–1973), Australian footballer Bill Sweeney (ice hockey) (1937–1991), Canadian ice hockey player Bill Sweeney (infielder) (1886–1948), American baseball player Bill Sweeney (pitcher) (1858–1903), baseball player Bill Sweeney (CEO), CEO of the International Foundation for Electoral Systems William Sweeney (composer) (born 1950), Scottish composer William J. Sweeney (Wisconsin), American politician William N. Sweeney (1832–1895), American politician William Sweeney (Medal of Honor) (1856–?), U.S. Navy sailor and Medal of Honor recipient