Traditionalism (Spanish: tradicionalismo) is a Spanish political doctrine, formulated in the early 19th century and developed until today. It understands politics as implementing the social reign of Jesus Christ. In practical terms it advocates a loosely organized monarchy combined with strong royal powers, with some checks and balances provided by organicist representation, and with society structured on a corporative basis. Traditionalism is an ultra-reactionary doctrine; it rejects concepts such as democracy, human rights, constitution, universal suffrage, sovereignty of the people, division of powers, religious liberty, freedom of speech, equality of individuals, parliamentarism and so on. The doctrine was adopted as theoretical platform by a socio-political movement named Carlism, though it appeared also in a non-Carlist incarnation. Traditionalism has never exercised major influence among the Spanish governmental strata, yet periodically it was capable of mass mobilization and at times partially filtered into the ruling practice.
Spanish Traditionalism is one of the oldest continuously proclaimed political doctrines in the world, its origins traced back to the late 18th century. In terms of intellectual grandeur the theory enjoyed its climax three times: in the 1840–1850s thanks to works of Jaime Balmes and Juan Donoso Cortés, in the 1890–1900s thanks to works of Enrique Gil Robles and Juan Vázquez de Mella, and in the 1950–1960s thanks to works of Francisco Elías de Tejada and Rafael Gambra. In terms of impact on real-life politics the concept exercised most visible influence during the rule of Ramón Narváez in the 1840–1850s, Miguel Primo de Rivera in the 1920s and Francisco Franco in the 1940–1950s. Today Traditionalism is developed by a handful of academic intellectuals and remains theoretical foundation for two minor political groupings.