The 5th Arkansas Cavalry Regiment (1863–1865) was a Confederate Army cavalry regiment during the American Civil War. The regiment was designated at various times as Newton's Regiment Arkansas Cavalry, Morgan's Regiment Arkansas Cavalry, 2nd Regiment Arkansas Cavalry, and the 8th Regiment Arkansas Cavalry. This regiment should not be confused with a later regiment commanded by Col. Robert Crittenden Newton, which was a regiment of Arkansas State Troops usually referred to as Newton's 10th Arkansas Cavalry Regiment.