The 23rd Arkansas Infantry (1862–1865) was a Confederate Armyinfantryregiment during the American Civil War. In the summer of 1864, the unit was reorganized as a mounted infantry regiment in preparation for Price's Missouri Expedition and officially redesignated as the 42nd Arkansas Infantry (Mounted). The unit was often referred to as Lyle's Arkansas Cavalry in report from Price's Missouri Expedition. Due to its mounted status, the unit is also occasionally referred to as the 23rd Arkansas Cavalry Regiment.[1]