The Workers' Front of Catalonia (Catalan: Front Obrer de Catalunya, FOC) was a clandestine political movement in Catalonia, Spain, formed in 1961, and active during the Spanish State of caudillo Francisco Franco.
FOC challenged the Unified Socialist Party of Catalonia (PSUC) over control of the growing Workers' Commissions (CC.OO).
FOC established a hold over the Metalworkers' union, and thus had a lot of influence over the Barcelona Workers' Commission for a brief moment.
It aligned itself with the Popular Liberation Front (FLP) and the Euskadiko Sozialisten Batasuna (ESB).
Other leaders of FOC were Isidre Molas, Alfonso Carlos Comín, José Antonio González Casanova and Miquel Roca.