Països Catalans
Joan Puigcercós was affiliated with "Independentistes dels Països Catalans" (Independentists of the Catalan Countries) between 1983 and 1985, and with "Crida a la Solidaritat" (Call to Solidarity) between 1985 and 1987. He was member of the "Assemblea d’Estudiants Independentistes d’Universitat" (Assembly of Independentist University Students) (1984–1989).