Falangism (Spanish: Falangismo) was the political ideology of three political parties in Spain that were known as the Falange, namely first the Falange Española, the Falange Española de las Juntas de Ofensiva Nacional Sindicalista (FE de las JONS), and afterward the Falange Española Tradicionalista y de las Juntas de Ofensiva Nacional Sindicalista (FET y de las JONS). Falangism combined Spanish nationalism, authoritarianism, Catholic traditionalism, anti-capitalism, and anti-communism, along with a call for national syndicalism. Historian Stanley G. Payne, a scholar on fascism, considers the Falange to have been a fascist movement, though he also recognizes the nuances, faults, and controversies of calling Falangism a fascist movement. Another interpretation is that the Falange from 1937 onward during Franco's leadership was a compromise between radical fascism and authoritarian conservatism.
The FE de las JONS merged with the Traditionalist Communion and several other parties in 1937 following the Unification Decree of Francisco Franco, to form FET y de las JONS. This new Falange was meant to incorporate all Nationalist political factions and became the sole political party of Francoist Spain. The merger was opposed by some of the original Falangists, such as Manuel Hedilla.