Alexandru Zub (born October 12, 1934) is a Romanian historian, biographer, essayist, political activist and academic. A former Professor at the University of Iaşi, 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.
A political prisoner during the early years of Communist Romania, and a known dissident, Zub was selected by Vladimir Tismăneanu on the panel of the Presidential Commission for the Study of the Communist Dictatorship in Romania, which presented its Final Report to Parliament on December 18, 2006.
Zub was born in Vârfu Câmpului, Botoşani County. He attended the School of Pedagogy in Şendriceni, and later completed University studies at the Faculty of History in Iaşi, graduating in 1957. The same year, he took part in a rally commemorating the medieval Prince of Moldavia Stephen the Great, which was considered nationalist by the Communist regime. Zub was arrested and imprisoned for the following six years (in Iaşi, and later in Jilava, Gherla, and near Brăila).