2nd New York Heavy Artillery was a heavy artillery regiment that served in the Union Army during the American Civil War. During the Siege of Petersburg the regiment operated as infantry.
The regiment was organized at Staten Island, New York and mustered in by individual batteries beginning August 23, 1861, for three years service.
Battery A – mustered in October 2, 1861
Battery B – mustered in August 23, 1861
Battery C – mustered in September 18, 1861
Battery D – mustered in September 18, 1861
Battery E – mustered in October 2, 1861
Battery F – mustered in October 15, 1861
Battery G – mustered in October 15, 1861
Battery H – mustered in October 15, 1861
Battery I – mustered in December 12, 1861
Battery K – mustered in December 12, 1861
Battery L – mustered in November 18, 1861
Battery M – mustered in December 12, 1861
On June 27, 1865, the regiment was consolidated into eight batteries. The men of Battery I were transferred to Batteries A & E. The men of Battery K were transferred to Batteries A, C, and F. The men of Battery L were transferred to Batteries B, C, D, and H. And the men of Battery M were transferred to Batteries A, G, and H.
The regiment was attached to Military District of Washington, D.C., December 1861 to May 1862. Sturgis' Command, Military District of Washington, to January 1863. Artillery, District of Alexandria, Virginia, to February 1863. Artillery, District of Alexandria, XXII Corps, Department of Washington, to April 1863. 1st Brigade, DeRussy's Division, XXII Corps, to April 1864. 2nd Brigade, DeRussy's Division, XXII Corps, to May 1864. Tyler's Heavy Artillery Division, II Corps, Army of the Potomac, May 16–29, 1864. 1st Brigade, 1st Division, II Corps, to June 1865. 1st Brigade, DeRussy's Division, XXII Corps, to September 1865.
The 2nd New York Heavy Artillery mustered out of the service at Washington, D.C. on September 29, 1865.