| Bill Clymer | |
| Position: | Shortstop |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | 1873 12, mf=yes |
| Birth Place: | Philadelphia, Pennsylvania, US |
| Death Place: | Philadelphia, Pennsylvania, US |
| Debutleague: | MLB |
| Debutdate: | June 25 |
| Debutyear: | 1891 |
| Debutteam: | Philadelphia Athletics |
| Finalleague: | MLB |
| Finaldate: | June 27 |
| Finalyear: | 1891 |
| Finalteam: | Philadelphia Athletics |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .000 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 0 |
| Teams: | |
William Johnston Clymer (December 18, 1873 – December 26, 1936) nicknamed "Derby Day Bill", was an American professional baseball player and manager. He played in Major League Baseball as a shortstop in . After his playing career, Clymer became a successful minor league manager.
At the age of 17, Clymer appeared in three games for the Philadelphia Athletics of the American Association.[1] In 11 at-bats as a Major League player, he did not collect a hit, but did have one base on balls and one stolen base.[2]
Clymer went on to play 18 seasons in the minor leagues (1891–1906)[3] and was a minor league manager for approximately 29 years (1898–1932).[1] He was the second minor league manager with more than 2,000 wins.[1] Clymer died at the age of 63 in his hometown of Philadelphia, and is interred at North Cedar Hill Cemetery.[2]