Bill Smiley should not be confused with Bill Smyly.
| Bill Smiley | |
| Position: | Second baseman |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | 1856 |
| Birth Place: | Baltimore, Maryland |
| Death Place: | Baltimore, Maryland |
| Debutleague: | MLB |
| Debutdate: | October 13 |
| Debutyear: | 1874 |
| Debutteam: | Baltimore Canaries |
| Finalleague: | MLB |
| Finaldate: | September 30 |
| Finalyear: | 1882 |
| Finalteam: | Baltimore Orioles |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .195 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | RBI |
| Stat3value: | 0 |
| Teams: | |
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.