Adolfo Rodríguez Saá (Spanish pronunciation: [aˈðolfo roˈðɾiɣes sa'a] (listen); born 25 July 1947) is an Argentine Peronist politician. Born in a family that was highly influential in the history of the San Luis Province, he became the province's governor in 1983, after the end of the National Reorganization Process military dictatorship. He remained governor up to 2001, being re-elected in successive elections.

President Fernando de la Rúa resigned in that year, amid the December 2001 riots, and the Congress elected Rodríguez Saá as the president of Argentina. In response to the 1998–2002 Argentine great depression, he declared the highest sovereign default in history and resigned days later amid civil unrest.

The Congress elected a new president, Eduardo Duhalde, in order to complete the term of office of de la Rúa (but Duhalde failed to do so, and eventually that term was completed by Néstor Kirchner, instead). Rodríguez Saá ran for President subsequently in the 2003 and 2015 presidential elections, but he was not successful.