The 4th Infantry, Arkansas State Troops (1861) was an Arkansas State infantry regiment that served during the American Civil War. After being raised in mid-1861, the regiment was assigned to the command of Brigadier General Nicholas Bartlett Pearce, who was the commander of the 1st Division, Provisional Army of Arkansas. The regiment is referred to as the "4th Regiment Arkansas Volunteers", or "Walker's Regiment" in contemporary accounts; it was disbanded shortly after the Battle of Wilson's Creek in August 1861. Another Arkansas unit also had the designation 4th Arkansas, the 4th Arkansas Infantry Regiment which formed after the Battle of Wilson's Creek, and spent most of its service in the Confederate Army of Tennessee. There is no connection between the two units.