USS T-2 (SS-60) was an AA-1-class submarine built for the United States Navy during World War I.
The boat was laid down as AA-2 on 31 May 1917 at the Fore River Shipbuilding Company yard in Quincy, Massachusetts by the Electric Boat Co. of New York, launched on 6 September 1919, sponsored by Miss Madeline Everett, redesignated SF-2 on 17 July 1920, renamed T-2 on 22 September 1920, and placed in commission at the Boston Navy Yard on 7 January 1922 with Lt. Clarke Withers in command.
T-2 was the last of the three T-boats placed in commission and served actively for only 18 months. Her unique mission was long-range scouting and reconnaissance for the surface fleet. Like her sister ships, she operated in Submarine Division 15, training crews and conducting maneuvers with the Atlantic Fleet. By the fall of 1922, design and construction flaws in the three T-boats had become apparent. As a result, T-2 was decommissioned on 16 July 1923 at the Submarine Base at Hampton Roads, Virginia, and was placed in reserve there. Later, she was moved to Philadelphia. Following seven years of inactivity, T-2 was stricken from the Navy list on 19 September 1930. She was broken up, and her metal was sold for scrap on 20 November 1930.
USS T-2 has been the name of more than one United States Navy ship, and may refer to:
USS Marlin (SST-2), originally USS T-2 (SST-2), was a T-1-class training submarine in commission from 1953 to 1973. She was the second submarine of the United States Navy to be named for the marlin, a large game fish. She was one of the smallest operational submarines ever built for the U.S. Navy.
T-2 was laid down on 1 May 1952 by the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut. She was launched on 14 October 1953, sponsored by Mrs. William R. DeLoach, and commissioned as USS T-2 on 20 November 1953 with Lieutenant Edward Holt in command.
After shakedown in the Massachusetts Bay area, T-2, got underway from New London, Connecticut, in late January 1954 for her home port at Naval Station Key West at Key West, Florida. Assigned to Submarine Squadron 12, Submarine Force, United States Atlantic Fleet, she immediately began operations in the sector from southern Florida to Guantánamo Bay, Cuba. For a decade and a half she performed valuable service as a target and training ship and helped to evaluate submarine and antisubmarine warfare equipment and tactics.