Clifford Edmund Bosworth FBA (born 29 December 1928, Sheffield, United Kingdom) is an English historian and orientalist, specializing in Arabic and Iranian studies. He received his B.A. degree from Oxford University and M.A. and Ph.D. degrees from Edinburgh University. He held permanent posts at St. Andrews University, Manchester University, and the Center for the Humanities at Princeton University. He is the author of 100s articles in academic journals and composite volumes. His other contributions include nearly 200 articles in the Encyclopaedia of Islam and some 100 articles in the Encyclopædia Iranica, as well as articles for Encyclopædia Britannica and Encyclopedia Americana. He's currently a visiting professor at the University of Exeter, where he has held the post since 2004.
His book The Islamic dynasties has been translated to Arabic and Persian. He is the chief editor of the Encyclopaedia of Islam and a consulting editor of Encyclopaedia Iranica.