The third USS Penguin (ASR–12) was a submarine rescue ship in the United States Navy during World War II.

Penguin, a submarine rescue and salvage vessel reported for duty with SubRon 1, at New London, Connecticut, 9 June 1944.

On 28 April, she reported for duty with the Atlantic Fleet's Submarine Forces, and on 23 July, arrived at Key West, her new homeport.

For the next nine years, with only occasional interruptions for submarine exercises or salvage operations in the Caribbean, and, in August 1954, off Newfoundland, she carried out her mission in the Key West area for SubRon 12.

During that period, however, she established a new record for ships of her class by "rescuing", during training operations, personnel from a submarine 349' below the surface, 24 February 1955.