Antoni Castells i Oliveres (Catalan: [kəsˈteʎs]; born September 24, 1950) is a Spanish politician. He is considered one of the most prominent members of the Catalanist wing of the Socialists' Party of Catalonia. Castells is married and has two children. He lives in Barcelona. He received an Economy degree and a PhD at the University of Barcelona. He is a lecturer in at the UB. He has been a visiting professor at the Johns Hopkins University of Baltimore (1993) and director of The until, November 2003. Currently Secretary of the Economy of the PSC Executive Committee.