3rd Arkansas, or 3rd Arkansas Infantry Regiment (May, 1861 – April 12, 1865) was a Confederate Army regiment during the American Civil War, and the most celebrated unit from that state. Formed and initially commanded by Colonel Albert Rust, and later falling under the command of Colonel Van H. Manning, the regiment was part of the Army of Northern Virginia serving under General Robert E. Lee. The regiment served for the duration of the war, from the late months of 1861 through to the Surrender at Appomattox Court House in 1865. They were the only Arkansas regiment to serve the entire war in the east, where most of the major battles were fought. They were also the only Arkansas regiment to initially sign up for the duration of the war, with all other regiments from that state signing on for a one year enlistment.