| Unit Name: | 185th New York Infantry Regiment |
| Dates: | August 26, 1864 - May 30, 1865 |
| Country: | United States |
| Allegiance: | Union |
| Branch: | Infantry |
| Battles: | Siege of Petersburg Battle of Boydton Plank Road Battle of Hatcher's Run Appomattox Campaign Battle of Lewis's Farm Battle of White Oak Road Battle of Five Forks Third Battle of Petersburg Battle of Appomattox Court House |
The 185th New York Infantry Regiment was an infantry regiment in the Union Army during the American Civil War.
The 185th New York Infantry was organized August 26, 1864 at Syracuse, New York and mustered on September 19, 1864, for one-year service under the command of Colonel Edwin S. Jenney.
The regiment was attached to 1st Brigade, 1st Division, V Corps, Army of the Potomac, to May 1865.
The 185th New York Infantry mustered out of service May 30, 1865 in Washington, D.C. Veterans and recruits were transferred to the 5th New York Veteran Volunteer Infantry.
Left New York for Petersburg, Va., September 27, 1864. Siege of Petersburg, Va., October 1, 1864 to April 2, 1865. Boydton Plank Road, Hatcher's Run, October 27–28, 1864. Warren's Raid on Weldon Railroad December 7–12. Dabney's Mills, Hatcher's Run, February 5–7, 1865. Appomattox Campaign March 28-April 9. Lewis Farm, near Gravelly Run, March 29. Junction of Boydton and Quaker Roads March 29. White Oak Road March 31. Five Forks April 1. Pursuit of Lee April 3–9. Appomattox Court House April 9. Surrender of Lee and his army. March to Washington, D. C., May 1–12. Grand Review of the Armies May 23.
The regiment lost a total of 98 men during service; 3 officers and 53 enlisted men killed or mortally wounded, 3 officers and 39 enlisted men died of disease.