USS Conemaugh was a side-wheel steamer in the United States Navy during the American Civil War.

With her large crew of 125 and her powerful guns, she was assigned as a gunboat on the Union blockade of the Confederate States of America.

Originally named Cinemaugh, she was renamed on 24 December 1861, launched on 1 May 1862 by Portsmouth Navy Yard, Kittery, Maine; and commissioned on 16 July 1862, Lieutenant Reed Werden in command.

She patrolled and served as a picket frequently engaging Confederate batteries and detachments of troops along stream banks.

She captured the blockade runner Judson on 30 April and sent her into Ship Island with her valuable cargo of cotton and turpentine.