The 19th (Dawson's) Arkansas Infantry (1861–1865) was a Confederate Army infantry regiment during the American Civil War. The regiment was present for but not engaged during the Battle of Pea Ridge. At the Battle of Arkansas Post, the regiment became split, with part of the regiment surrendering with the garrison when the post capitulated. The captured portion of the regiment was eventually exchanged and released on the east side of the Mississippi and served the remainder of the war with the Confederate Army of Tennessee. The un-captured portion of the regiment was consolidated with the remnants of the 24th Arkansas and served the remainder of the war in the Department of the Trans-Mississippi.