List of tinclad warships of the Union Navy

The tinclad warship was an informal class of light military steamboats used by the Union Navy during the American Civil War. Tinclads primarily consisted of converted civilian vessels, though some were purpose-built; some had formerly been in Confederate service. They lacked the heavy armor that distinguished ironclad warships but were made combat-worthy by adding lighter armament and a wooden casemate. Tinclads were cheaper, required smaller crews, and could enter shallower water than ironclads due to their light drafts. While tinclads were poorly suited to engage heavy artillery or other warships, they were better equipped to combat small groups of enemy soldiers. Tinclads were frequently used for escort and patrol duties, and sometimes provided naval support for other military actions. A total of 74 saw service during the war.