The 1st Arkansas Infantry (1861–1865) was a Confederate Army infantry regiment during the American Civil War. The regiment was raised in April 1861 by Colonel Thompson B. Flournoy. It moved first to Virginia, but transferred back to Tennessee and served the rest of the war in the western theater, seeing action in the Kentucky, Tennessee and Georgia campaigns. Following its depletion in numbers, the regiment was consolidated several times with other Arkansas regiments, finally merging in 1865 into the 1st Arkansas Consolidated Infantry Regiment. There were three regiments known as "1st Arkansas" during the war. The second unit with the designation of "1st Arkansas" was the 1st Infantry, Arkansas State Troops, which was mustered into Confederate service at Pitman's Ferry, Arkansas, on 23 Jul