Battery A, 1st Rhode Island Light Artillery Regiment was an artillery battery that served in the Union Army during the American Civil War.

Battery A, 1st Rhode Island Light Artillery Regiment was organized in Providence, Rhode Island and mustered in for a three-year enlistment on June 6, 1861 under the command of Captain William H. Reynolds.

The battery was attached to Burnside's Brigade, Hunter's Division, McDowell's Army of Virginia, to August 1861.

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

Artillery, 2nd Division, 2nd Corps, Army of the Potomac, to June 1863.

Artillery Brigade, II Corps, Army of the Potomac, to September 1864.

The original members of the battery, who had enlisted for three years, were mustered out in Providence on June 18, 1964.

The remaining members of the battery continued to serve as unit which served in conjunction with Battery B, 1st Rhode Island Light Artillery.

Left Rhode Island for Washington, D.C., June 19.

Charles City Cross Roads and Glendale June 30.

Cover retreat of Pope's Army from Bull Run to Washington August 31-September 1.

Moved to Harpers Ferry September 22, and duty there until October 30.

Advance up Loudoun Valley and movement to Falmouth, Va., October 30-November 17.

Battery B was mustered out in 1865 and had no direct continuity with the PMCA.