Soti Triantafyllou or Triantafillou (Greek: Σώτη Τριανταφύλλου; born 1957) is a Greek writer, columnist, translator, and political/social commentator. She is based in Athens and Paris.

Soti Triantafyllou was born in downtown Athens (Fokionos Negri). She attended English-Hellenic Elementary School and graduated from Arsakeion High School. Her further education includes: Diplôme d’Etudes de Lettres et Civilisation Françaises, Université de Nice, Faculté des Lettres et Sciences Humaines, Nice, France (1979), Bachelor of Science; Faculty of Pharmacy, University of Athens, Athens, Greece (Oct.1979), Diplôme d’Etudes Approfondies (DEA), Faculty of History and Civilizations, Ecole des Hautes Etudes en Sciences Sociales, Paris (with professor Marc Ferro), France (1981), PhD, American History and Civilization, Ecole des Hautes Etudes en Sciences Sociales, Paris (thesis on “The Image of the U.S. Through the Hollywood Comedy 1946-1960” with Professor Marc Ferro), France (1984), PhD, History of American Cities, NYU (Thesis “Los Angeles, California and Athens, Greece: Urban Patterns” with professor Jean Heffer) (1989). She did post-doctoral research at the Centre Koyre in Paris (History and Philosophy of Mathematics) and at the EHESS (Russian Studies).