4th Rhode Island Infantry Regiment was organized during the American Civil War from 1861 and 1864.

Organized at Providence, 1861, the 4th Rhode Island Infantry Regiment left the state for Washington, D. C., October 2.

Attached to Casey's Provisional Division, Army Potomac, October–November, 1861.

Howard's Brigade, Sumner's Division, Army of the Potomac, to December, 1861.

Parke's 3rd Brigade, Burnside's Expeditionary Corps, to April, 1862.