| Bill Duzen | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | February 21, 1870 |
| Birth Place: | Buffalo, New York, U.S. |
| Death Place: | Buffalo, New York, U.S. |
| Debutleague: | MLB |
| Debutdate: | September 21 |
| Debutyear: | 1890 |
| Debutteam: | Buffalo Bisons |
| Finalleague: | MLB |
| Finaldate: | September 27 |
| Finalyear: | 1890 |
| Finalteam: | Buffalo Bisons |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–2 |
| Stat2label: | Strikeouts |
| Stat2value: | 5 |
| Stat3label: | Earned run average |
| Stat3value: | 13.85 |
| Teams: | |
William George Duzen (February 21, 1870 - March 11, 1944) was an American Major League Baseball pitcher. He played in two games with the Buffalo Bisons in .
Duzen was born in Buffalo, New York in 1870. On September 21, 1890, at the age of 20, he made his Players' League as a starting pitcher for the Buffalo Bisons. Duzen would pitch in a second game on September 27, the final game of his career. In his two career games, he lost both of his starts, gave up 20 earned runs in 13.0 innings, and struck out five batters.[1]