USS Napa may refer to the following ships operated by the United States Navy: , a non-commissioned Union ship in the American Civil War , a Bagaduce-class ocean tug; scuttled by her crew in the Philippines on 9 April 1942. USS Napa (APR-10), assigned 23 August 1942; contract for construction of the rescue vessel was cancelled 12 March 1943 , a Haskell-class attack transport which served in World War II during 1944–1945.