William B. Smiley (1856 in Baltimore, Maryland – July 11, 1884 in Baltimore, Maryland) was a professional baseball player who primarily played second base in the American Association for the St. Louis Brown Stockings and the Baltimore Orioles for one season in 1882.

Bill Smiley
Second baseman
Born: 1856
Baltimore, Maryland
Died: July 11, 1884(1884-07-11) (aged 27–28)
Baltimore, Maryland
Batted: Unknown
Threw: Unknown
MLB debut
October 13, 1874, for the Baltimore Canaries
Last MLB appearance
September 30, 1882, for the Baltimore Orioles
MLB statistics
Batting average.195
Home runs0