| 2nd Regiment California Volunteer Cavalry | |
|---|---|
 Company I, Guidon | |
| Active | September 1861 to October 21, 1866 |
| Country | United States |
| Allegiance | Union |
| Branch | Cavalry |
| Engagements | "Battle" of Bear River Battle of Apache Pass Keyesville massacre (Co.E) Battle of Pecos River |
The 2nd Regiment California Volunteer Cavalry was a cavalry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States, with most of its companies dispersed to various posts.