ARA General Belgrano was an Argentinian Navy light cruiser in service from 1951 until 1982.

Previously named USS Phoenix, she saw action in the Pacific theatre of World War II before being sold to Argentina. The vessel was the second to have been named after the Argentine founding father Manuel Belgrano (1770–1820). The first vessel was a 7,069-ton armoured cruiser completed in 1899.

She is the only ship ever to have been sunk during military operations by a nuclear-powered submarine and the second sunk in action by any type of submarine since World War II, the first being the Indian frigate INS Khukri by the Pakistani Submarine PNS Hangor during the 1971 Indo-Pakistani War.

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