Battery M, 1st New York Light Artillery Regiment was an artillery battery from New York state that served in the Union Army during the American Civil War.

It fought at First Winchester, Cedar Mountain, Second Bull Run, and Antietam in 1862.

It took part in the Atlanta campaign and Sherman's March to the Sea in 1864 and fought at Bentonville in 1865.

The battery marched in the Grand Review of the Armies and was mustered out in June 1865.

Attached to Banks' Division, Army of the Potomac, to March, 1862.

Artillery, Williams' Division, Banks' 5th Army Corps, to April, 1862, and Dept.

Artillery, 1st Division, 20th Army Corps, to July, 1864.

Artillery Brigade, 20th Army Corps, to June, 1865.

March to Fairfax Station December 10–14 and duty there until January 20, 1863.

Operations about Rocky Faced Ridge, Tunnel Hill and Buzzard's Roost Gap May 8–13.

Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 26-June 5.

Ruff's Station, Smyrna Camp Ground, July 4.

[1] Battery lost during service 13 Enlisted men killed and mortally wounded and 1 Officer and 11 Enlisted men by disease.

A week after the battle, the battery reported 5 officers and 119 enlisted men present for duty.

[2] When XII Corps went into action at 7 pm, Cothran's battery joined the I Corps batteries north of the cornfield and engaged Confederate targets near the West Woods until late in the afternoon.

[3] At the Battle of Kolb's Farm on 22 June 1864, Battery M commanded by Captain John D. Woodbury was armed with M1857 12-pounder Napoleons.

While assisting in the defense of Alpheus S. Williams' division, the guns fired canister and spherical case shot to repulse a Confederate infantry attack.