| Bill Bartley | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 8 January 1885 |
| Birth Place: | Cincinnati |
| Death Place: | Cincinnati |
| Debutleague: | MLB |
| Debutdate: | September 15 |
| Debutyear: | 1903 |
| Debutteam: | New York Giants |
| Finalleague: | MLB |
| Finaldate: | September 20 |
| Finalyear: | 1907 |
| Finalteam: | Philadelphia Athletics |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0-1 |
| Stat2label: | Earned run average |
| Stat2value: | 3.04 |
| Stat3label: | Strikeouts |
| Stat3value: | 24 |
| Teams: | |
William Jackson Bartley (January 8, 1885 – May 17, 1965) was an American professional baseball pitcher. He played in Major League Baseball for the New York Giants and Philadelphia Athletics.