Alexandru Zub (born October 12, 1934) is a Romanian historian, biographer, essayist, political activist and academic. A former professor at the University of Iași, noted for his contribution to the study of cultural history and Romanian history, he is currently head of the A.D. Xenopol Institute of History (an office he has held since 1990). He was elected a full member of the Romanian Academy in 2004 (having been a correspondent member since 1991); currently, he serves as head of the Academy's History Department.