Susana Díaz Pacheco (Spanish pronunciation: [suˈsana ˈði.aθ]; born 18 October 1974, Seville, Spain) is a Spanish politician from Andalusia and a leading figure in the Spanish Socialist Workers' Party (PSOE) as the former leader of the Andalusian PSOE-A.She served as the President of Andalusia until January 2019, having acceded to the presidency following José Antonio Griñán's resignation in 2013, and was subsequently re-elected in Andalusia's 2015 regional election. Until July 2021, she served as the Secretary-General of the Andalusian branch of PSOE.
From 2016 she combined her regional roles with aspirations to the national leadership of the party. Following her defeat to Pedro Sánchez in the 2017 PSOE leadership elections, she has continued with her regional responsibilities.