William "Clipper" Flynn (April 29, 1849 – November 5, 1881) was an American professional baseball player who played in the National Association as a first baseman for the 1871 Troy Haymakers and the 1872 Washington Olympics.
Clipper Flynn
| Given name: | William Flynn |
| Nicknames: | None |
| Primary Pos: | Firstbase |
| Hght/Wght: | 5'7" / 140 lbs |
| Bats/Throws: | None / R |
| Born: | Apr 29, 1849 in Lansingburgh, NY |
| Died: | Nov 5, 1881 in Troy, NY (32 years old) |
| Debut: | May 9, 1871 |