| 45th Wisconsin Infantry Regiment | |
|---|---|
 | |
| Active | November 8, 1864 – July 17, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Size | Regiment |
| Engagements | American Civil War |
| Commanders | |
| Colonel | Henry F. Belitz |
The 45th Wisconsin Infantry Regiment was a volunteer infantry regiment that served in the Union Army during the American Civil War.