ARA Bahía Buen Suceso (B-6) was a Bahía Aguirre-class 5,000-ton fleet transport that served in the Argentine Navy from 1950 to 1982. She took part in the Falklands War as a logistics ship tasked with resupplying the Argentine garrisons scattered around the Falkland Islands. Captured by British forces on 15 June after running aground at Fox Bay, she sank in deep waters while being used as target practice by the Royal Navy on 21 October 1982.