The 3rd Louisiana Field Battery was an artillery unit recruited from volunteers in Louisiana that fought in the Confederate States Army during the American Civil War.

On 10–11 May 1863, the battery fought Union gunboats while part of the garrison of Fort Beauregard.

In 1864, it served during the Red River campaign and was present, but not engaged at the battles of Mansfield and Pleasant Hill.

The battery dueled with two Union gunboats at DeLoach Bluff on 26 April.

The soldiers ended the war while manning heavy cannons at Grand Ecore near Natchitoches, Louisiana, and where they surrendered in June 1865.