The 2012 Catalan regional election was held on Sunday, 25 November 2012, to elect the 10th Parliament of the autonomous community of Catalonia. All 135 seats in the Parliament were up for election. It was a snap election, announced on 25 September by President Artur Mas following the pro-independence demonstration in Barcelona on 11 September—the National Day of Catalonia—and the failed talks between President Mas and Prime Minister Mariano Rajoy to give greater fiscal autonomy to Catalonia.

The Parliament of Catalonia is the unicameral legislature of the autonomous community of Catalonia. The Parliament is currently made up of 135 members, known as deputies, who are elected for four-year terms or after extraordinary dissolution, chosen by universal suffrage in lists of four constituencies, corresponding to the Catalan provinces. The Parliament building is located in Ciutadella Park, Barcelona.