The Fourth Mississippi Cavalry was organized in late 1862 by the consolidation of two previously formed Mississippi Cavalry Battalions. These units were Hughes' Mississippi Cavalry Battalion and Stockdale's Mississippi Cavalry Battalion. Both of these units would reappear individually later in the War, but in both cases they were second organizations formed by the same commanding officers and given their previous designations.

       As with almost all other Civil War units, the Fourth Mississippi Cavalry was often known and written about using alternate designations derived from the name of its commanding officer. Names of this type used by or to describe the Fourth Mississippi Cavalry are listed below: