Daniel-Constantin Barbu (born 21 May 1957) is a Romanian political scientist, publisher, essayist, journalist, and professor at the University of Bucharest's Faculty of Political Science.
The head of the Research Institute at the University of Bucharest, and former dean of the Faculty, he was also director of Realitatea Româneasca, a daily newspaper, in 1991-1992.
Barbu worked as a State Adviser for President Emil Constantinescu between 1997 and 1999.
He is the author as of June 2007 of eight books and many more articles on political science, and a contributor to the magazine Sfera Politicii.
He is also a member of the Romanian Senate from Bucharest and former Minister of Culture.