1st Washington Territory Infantry Regiment
| 1st Washington Territory Infantry Regiment | |
|---|---|
| Colonel J. Steinberger | |
| Active | October 1861 – December 1865 | 
| Disbanded | December 1865 | 
| Country | United States | 
| Allegiance | Union | 
| Branch | Infantry | 
| Size | 1,032 | 
| Engagements | American Civil War Snake War Affair at the Grand Ronde Prairie | 
The 1st Regiment of Washington Territory Volunteer Infantry (or 1st Washington Territory Volunteers) was a unit of infantry raised by the Washington Territory for service in the Union Army during the American Civil War.