John Beard Allen | |
|---|---|
 | |
| United States Senator from Washington | |
| In office November 20, 1889 – March 3, 1893 | |
| Preceded by | Position created |
| Succeeded by | John L. Wilson |
| Delegate to the U.S. House of Representatives from Washington Territory's at-large district | |
| In office March 4, 1889 – November 11, 1889 | |
| Preceded by | Charles Stewart Voorhees |
| Succeeded by | District eliminated |
| Personal details | |
| Born | May 18, 1845 Crawfordsville, Indiana |
| Died | January 28, 1903 (aged 57) Seattle, Washington |
| Political party | Republican |
| Alma mater | University of Michigan |
| Signature |  |
| Military service | |
| Allegiance | United States of America Union |
| Branch/service | Union Army |
| Years of service | 1864 |
| Rank | Private |
| Unit | 135th Indiana Infantry Regiment |
| Battles/wars | American Civil War |
John Beard Allen (May 18, 1845 – January 28, 1903) was an American lawyer and politician who served as a United States senator from Washington from 1889 to 1893. A member of the Republican Party, he previously served as the United States representative from Washington Territory's at-large congressional district in 1889.