USS Canandaigua (1862) was a sloop-of-war which displaced 1,395 long tons (1,417 t), with steam engine screw, acquired by the Union Navy during the second year of the American Civil War. After the war, Canandaigua was retained and placed in operation in Europe and elsewhere. With her heavy guns (three of them rifled) and speed of 10 kn (12 mph; 19 km/h), she was an ideal and successful gunboat in the Union blockade of the Confederate States of America.