Sixto Alfonso Durán-Ballén Cordovez (14 July 1921 – 15 November 2016) was an Ecuadorian political figure and architect who served as the 37th president of Ecuador from 1992 to 1996. He previously served as Mayor of Quito between 1970 and 1978. In 1951, he co-founded a political party, the Social Christian Party. In 1991, he left the Social Christian Party and formed a new conservative group, the Republican Union Party (PUR), before running for president for the third time in 1992 where he was elected president.
Durán Ballén served as congressman in 1984 and again in 1998. He helped to modernize the Ecuadorian economy while facing challenges from the World Bank and oversaw and resolved the Cenepa War during the last years of his presidency.