ARA Rivadavia was a battleship of the Argentine Navy. Named after the first Argentine president, Bernardino Rivadavia, she was the lead ship of her class and the third dreadnought built during the South American dreadnought race. Moreno was Rivadavia's only sister ship.

In 1907, Brazil placed an order for two of the powerful new " dreadnought" warships as part of a larger naval building program. Argentina quickly responded, as Brazil's ships outclassed anything in the Argentine fleet. After an extended bidding process, contracts to design and build Rivadavia and Moreno were given to the American Fore River Shipbuilding Company. Rivadavia was commissioned on 27 August 1914 but saw no combat in the war, as Argentina remained neutral. Argentina remained neutral until March 1945 when the country declared war on the Axis powers, and Rivadavia did not become involved in the soon-to-end conflict. Stricken from the naval register in 1957, Rivadavia was sold later that year and was broken up for scrap in 1959. ( Full article...)