The Bayou Teche campaign, or First Bayou Teche campaign, was a brief military campaign in April and May 1863 during the American Civil War by forces from the Confederate States Army seeking to prevent the Union Army from gaining control of northern Louisiana. Union forces were seeking to gain a foothold on the Red River as a prelude to besieging Port Hudson, a Confederate strong point on the Mississippi River.
A second campaign, featuring a series of maneuvers in the same region from October until November 1863 is often referred to as the Second Bayou Teche campaign.