Harris's Missouri Battery (officially known as the 4th Missouri Field Battery) was an artillery battery that served in the Confederate States Army during the American Civil War. The battery was organized in early 1864 when the 13th Missouri Light Battery was reorganized in a process that may not have been officially approved; Captain Samuel Stanhope Harris commanded the new unit. The battery fought in the Camden Expedition in early 1864, seeing action in the Battle of Prairie D'Ane and the Battle of Poison Spring in April. In June, the battery was present at the Battle of Ditch Bayou. Harris's Battery accompanied Sterling Price during his raid into Missouri in late 1864, during which it fought at the battles of Pilot Knob, Glasgow, Little Blue River, Big Blue River, and Mine Creek, as well