SS Washington was a 24,189-ton luxury liner of the United States Lines, named after the US capital city. On 6 June 1941, the Washington was commissioned as the troopship USS Mount Vernon. In 1947 one deck was restored to prewar condition and the ship resumed commercial service. In 1951 the ship was again used by the U.S. Government transporting soldiers and their families. The ship was laid up in 1953 and scrapped in 1965.

USS Mount Vernon (AP-22) was a troop transport that served with the United States Navy during World War II. Prior to her military service, she was a luxury ocean liner named SS Washington.