The Repsol-YPF tower is a corporate high-rise building designed by internationally recognized architect César Pelli constructed in the Puerto Maderobarrio (district) of Buenos Aires, Argentina. Construction began in 2005, and the office building was completed in September 2008. The building is 160 metres (520 ft) tall and has 44 floors. It was, upon completion in 2008, the tallest office building in Argentina, and the third tallest overall. The building is located on the corner of Macacha Güemes and Juana Manso streets, in the Puerto Madero ward.
The building's construction cost an estimated US$134 million. The main contractor in its construction was CRIBA, a leading local contractor founded in 1952 by Alberto Tarasido. Façade and engineering was provided by Obras Metálicas S. A.