SS Sackett's Harbor was a T2 tanker that was built in August 1943. She served in the United States Merchant Marine during World War II. The ship was a namesake of Sackets Harbor, New York. Sacketts Harbor survived the war basically unscathed but on 1 March 1946 she was sailing between Yokosuka and Balboa when she broke in half about 800 miles southwest of Adak, Alaska. The bow of the ship was sunk but the stern continued to float. The stern section was able to get to Adak under her own power. The only reported fatalities were two cats.