USS Griffin (AS-13), originally Mormacpenn, a United States Maritime Commission Type C3 pre-war cargo ship, was launched by Sun Shipbuilding & Dry Dock, Chester, Pennsylvania, 11 October 1939. She served briefly with Moore-McConnack, Inc., was acquired by the Navy in 1940, renamed Griffin (AS-13) and converted to a submarine tender at Robbins Dry Dock and Repair Company, Brooklyn, N.Y. Griffin commissioned 31 July 1941, Comdr. S. D. Jupp in command. She was stricken in 1972 and transferred to MARAD. She was sold in 1973.