| 90th New York Infantry Regiment | |
|---|---|
.svg) | |
| Active | September–December, 1861 to February 9, 1866 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Nickname(s) | Hancock Guard, McClellan Chasseurs, and McClellan Rifles |
| Engagements | Siege of Port Hudson Battle of Kock's Plantation Red River Campaign Battle of Opequon Battle of Fisher's Hill Battle of Cedar Creek |
| Insignia | |
| X Corps |  |
| XIX Corps |  |
| New York U.S. Volunteer Infantry Regiments 1861-1865 | ||||
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The 90th New York Infantry Regiment, the "Hancock Guard", "McClellan Chasseurs", "McClellan Rifles", was an infantry regiment of the Union Army during the American Civil War.