The trial of Catalonia independence leaders, legally named Causa Especial 20907/2017 and popularly known as the Causa del procés, was an oral trial that began on 12 February 2019 in the Supreme Court of Spain. The case was tried by seven judges and was chaired by judge Manuel Marchena. Judge Pablo Llarena had previously coordinated an instruction between October 2017 and July 2018, as a result of which 12 people were tried, including the previous vice president Oriol Junqueras of the regional government and most of the cabinet as well as political activists Jordi Sànchez and Jordi Cuixart and the former Speaker of the Parliament of Catalonia Carme Forcadell. Some defendants remained in pre-trial detention without bail from the beginning of the instruction process and have thus already served part of their sentence.

Jordi Sànchez i Picanyol is a Spanish political activist from Catalonia, who was president of the Catalan National Assembly (ANC) between May 2015 and November 2017.