Juliana Di Tullio (born 22 October 1971) is an Argentine psychologist and politician. A member of the Justicialist Party, Di Tullio served three terms as National Deputy representing Buenos Aires Province, from 2005 to 2017. From 2013 to 2015, during the presidency of Cristina Fernández de Kirchner, Di Tullio was president of the Front for Victory parliamentary bloc in the lower chamber of the National Congress. She also served as a member of the Mercosur Parliament, and in the board of directors of the Banco Provincia. Since 2021, she has been a National Senator for Buenos Aires Province.