Edgar Morin (born Edgar Nahoum; 8 July 1921) is a French philosopher and sociologist of the theory of information who has been recognized for his work on complexity and "complex thought" (pensée complexe), and for his scholarly contributions to such diverse fields as media studies, politics, sociology, visual anthropology, ecology, education, and systems biology. As he explains: He holds two bachelors: one in history and geography and one in law.

He never did a Ph.D. Though less well known in the anglophone world due to the limited availability of English translations of his over 60 books, Morin is renowned in the French-speaking world, Europe, and Latin America.