Renwick's Elgin Battery Illinois Light Artillery was an artillery battery from Illinois that served in the Union Army during the American Civil War.

The battery was mustered into service in November 1862 and assigned to guard duty in Kentucky.

In February 1865, the battery was transferred to the Atlantic coast where it fought at Wyse Fork shortly before the war ended.

2nd Brigade, 4th Division, 23rd Army Corps, to February, 1865.

2nd Brigade, 4th Division, District of East Tennessee, Dept.

Duty at Bowling Green, Ky., until May, 1863, and at Glasgow and Tompkinsville until July.

Action at Mossy Creek, Talbot's Station, December 29.

Post and garrison duty at Knoxville and other points in East Tennessee until February, 1865.