Attack Squadron ONE L (VA-1L) was a United States Navy squadron used to evaluate weapons and equipment and develop new tactics for the fleet under command of Light Carrier Air Group One (CVLG-1) aboard the USS Saipan (CVL-48). Originally established as Torpedo Squadron FIFTY EIGHT (VT-58) on 19 March 1946 at Naval Auxiliary Air Station Fentress in Chesapeake, Virginia, it was redesignated VA-1L on 15 November 1946 and ultimately disestablished on 20 November 1948. The squadron was the only one to receive the designations VA-1L or VT-58.