Joan Puigcercós (Catalan pronunciation: [ʒuˈam ˌputʃsəɾˈkos]; born 2 December 1966 in Ripoll, Spain) is a Spanish Catalan politician who had served as president of the Republican Left of Catalonia (2008–2011).

He was a member of the Sports and Wealth Club in Ripoll, where he acted as president of youth area between 1986 and 1988.

In the 24th National Congress, held in Lleida 3 and 4 July 2004, he was elected secretary-general of ERC.

On 7 June 2008, he was elected president of the party, succeeding Josep-Lluís Carod-Rovira.

Joan Puigcercós is a member of the Josep Irla Foundation Patronate.