3rd Arkansas Infantry Regiment (Confederate States)

3rd Arkansas Infantry Regiment
Regimental color of the Third Arkansas at the Old State House Museum in Little Rock, Arkansas
Active	1861–1865
Disbanded	April 12, 1865
Country	Confederate States
Allegiance	Arkansas
Branch	Army
Type	Regiment
Role	Infantry
Part of	Texas Brigade
Nickname(s)	"Third Arkansas"
Facings	Light blue
Engagements	American Civil War Battle of Cheat Mountain Battle of Hancock Battle of Seven Pines Seven Days Battles Battle of Harpers Ferry Battle of Antietam Battle of Fredericksburg Battle of Gettysburg Battle of the Wilderness Battle of Chickamauga Knoxville Campaign Battle of Spotsylvania Battle of Cold Harbor Siege of Petersburg Appomattox Campaign
Commanders
Commanding officers	Col. Albert Rust Col. Van. H. Manning Lieut. Col. Robert S. Taylor (acting)

The 3rd Arkansas Infantry Regiment, commonly known as the "Third Arkansas", was a line infantry formation of the Confederate States Army in the Eastern Theater of the American Civil War.

Mustered into Confederate service in 1861 under Colonel Albert Rust, and later falling under the command of Colonel Van. H. Manning, the Arkansas regiment was part of the Army of Northern Virginia, serving under General Robert E. Lee. The Third Arkansas served for the duration of the war, from the late months of 1861, through to its surrender at Appomattox Court House in 1865.

It was the only Arkansas regiment to serve the entire war in the Eastern Theater, where most of the major American Civil War battles were fought, and the only one from the state to initially sign up for the duration of the war, with all other regiments from the state opting for twelve-month enlistments.