Cuba operates under an officially secular state framework established in the 1976 constitution, though religious identification and practice have fluctuated dramatically across the revolutionary period. The 1992 constitutional amendment removed references to scientific atheism and opened Communist Party membership to religious believers, marking a decisive shift from the anti-religious campaigns of the 1960s and 1970s. Article 8 of the current constitution separates religious institutions from the state while guaranteeing freedom of conscience and religion. The National Office of Religious Affairs, operating under the Central Committee of the Communist Party, maintains regulatory oversight of all religious organizations through a registration system that requires legal recognition for public worship activities.
Santería, formally known as Regla de Ocha, constitutes the most widely practiced religious system in Cuba, with estimates ranging from 70 to 80 percent of the population maintaining some level of engagement with its practices, though precise census data remains unavailable due to the syncretic and private nature of worship. The tradition emerged from Yoruba religious systems brought by enslaved West Africans, primarily from present-day Nigeria and Benin, during the colonial period between the 16th and 19th centuries. The synchronization with Catholic saints occurred as a survival mechanism under Spanish colonial laws that prohibited African religious practices while mandating Catholic conversion. Orisha deities correspond to Catholic saints in a system practitioners navigate fluidly—Changó aligns with Santa Bárbara, Yemayá with Nuestra Señora de Regla, Ochún with Nuestra Señora de la Caridad del Cobre. This blending makes statistical separation of Catholic and Santería practitioners methodologically problematic, as many Cubans maintain dual identities without perceiving contradiction.
The Basílica del Cobre, located 27 kilometers northwest of Santiago de Cuba in the village of El Cobre, serves as the primary pilgrimage site for both Catholic devotees and Santería practitioners who venerate the resident image as Ochún. The basilica houses La Virgen de la Caridad del Cobre, declared Cuba's patron saint by Pope Benedict XV in 1916. The copper mine at El Cobre operated from 1530 until closure in 1997, and the shrine's history traces to the 1608 discovery of a statue floating in the Bay of Nipe, though the current baroque-style basilica dates to 1927. Pope John Paul II placed a golden crown on the statue during his 1998 visit, the first papal visit to Cuba. Pope Francis visited the basilica during his September 2015 visit. Pilgrims leave offerings in a dedicated room—baseball uniforms, military medals, photographs, written petitions—reflecting the Virgin's role as national protector across secular and religious spheres.
Roman Catholicism maintains historical primacy as the colonial religion imposed by Spanish authorities from 1492 through independence in 1898. The Spanish crown established the diocese of Baracoa in 1518, relocated to Santiago de Cuba in 1522, with Havana becoming a diocese in 1787. Cathedral construction in Havana began in 1748 and completed in 1777, designed by Jesuit architects before the order's 1767 expulsion from Spanish territories. The church reported approximately 60 percent Catholic identification in the 1950s pre-revolutionary period, though actual Mass attendance remained substantially lower. Post-1959 revolutionary policies nationalized Catholic schools in 1961, expelled 131 priests including auxiliary bishop of Havana Eduardo Boza Masvidal in September 1961, and restricted religious practice to church interiors until the 1992 reforms. The National Catholic Directory of Cuba reported 286 parishes operating across 11 dioceses as of 2018, served by approximately 400 priests for a population of 11.3 million, yielding a ratio substantially below global Catholic averages.
Pope John Paul II's January 21-25, 1998 visit marked the first papal visit to Cuba, with public masses drawing estimated crowds of 500,000 in Havana's Plaza de la Revolución and 200,000 in Santiago de Cuba. Fidel Castro attended the opening ceremony, the first documented meeting between a pope and Castro. The visit produced immediate policy shifts including the restoration of Christmas as a public holiday in December 1997, suspended as an official holiday since 1969 to prioritize sugar harvest productivity. Pope Benedict XVI visited March 26-28, 2012, celebrating Mass in Santiago de Cuba and Havana's Plaza de la Revolución. Pope Francis made a three-day visit September 19-22, 2015, holding masses in Havana, Holguín, and Santiago de Cuba, with Raúl Castro in attendance. Francis's role in mediating the December 2014 diplomatic normalization between Cuba and the United States added political significance to the visit.
Protestant denominations entered Cuba following the 1898 Spanish-American War, with American missionary societies establishing churches during the U.S. occupation period from 1898 to 1902. The Methodist Episcopal Church South opened missions in 1898, followed by American Baptists in 1899, and the Episcopal Church in 1901. The Assemblies of God established presence in 1929. Post-revolutionary nationalization affected Protestant institutions less severely than Catholic ones, as Protestant churches operated fewer schools and maintained less institutional wealth. The Cuban Council of Churches, formed in 1941, includes Methodist, Presbyterian, Episcopal, and Baptist denominations representing approximately 5 percent of the population according to religious demographers' estimates from the early 2000s. Pentecostal and evangelical denominations report the fastest growth rates since the 1990s economic crisis known as the Special Period, with unregistered house churches proliferating outside official oversight.
The Jehovah's Witnesses lost legal recognition in 1974 following refusal to participate in military service or patriotic activities, regaining registration in 1998. The organization reported 96,000 active publishers in Cuba as of 2019, indicating practitioners who engage in regular proselytizing, with Memorial attendance of 218,000, suggesting broader community participation. The Seventh-day Adventist Church maintains approximately 300 congregations with an estimated 35,000 baptized members as of 2018. The Church of Jesus Christ of Latter-day Saints operates without legal recognition, practicing in private homes, though the organization does not publish membership figures for Cuba.
Jewish presence in Cuba dates to conversos fleeing the Spanish Inquisition in the 16th century, with organized communities forming in the 19th century. The United Hebrew Congregation of Havana established formal structure in 1906. Jewish immigration peaked between 1920 and 1930, with arrivals from Eastern Europe and the Ottoman Empire establishing communities in Havana, Santiago de Cuba, and Camagüey. The 1959 revolution preceded a demographic shift as approximately 94 percent of Cuba's 15,000 Jews emigrated between 1959 and 1980, primarily to the United States and Israel. The Jewish community numbered approximately 1,500 as of 2018, concentrated primarily in Havana with functioning synagogues including Patronato, the largest active synagogue in the Caribbean, located in Havana's Vedado neighborhood. The Orthodox Chevet Achim synagogue operates in Old Havana. Santiago de Cuba and Camagüey maintain small communities. The government permits kosher slaughter and matzah production for Passover. Adath Israel, a conservative congregation in Havana, serves Ashkenazi and Sephardic members.
Islam maintains minimal organized presence in Cuba, with no purpose-built mosques and no resident imam as of 2020. The Union Árabe de Cuba, established in 1979, serves primarily cultural rather than religious functions, representing descendants of Lebanese, Syrian, and Palestinian immigrants who arrived between 1900 and 1930. Most Arab immigrants were Christian rather than Muslim, and the Islamic community remains unquantified in census data. Turkish and Pakistani diplomatic personnel stationed in Havana constitute the primary Muslim practitioners, gathering for Friday prayers in embassy facilities.
Buddhism arrived through Chinese immigration during the 19th century coolie trade, with 125,000 Chinese contract laborers arriving between 1847 and 1874 to replace enslaved African labor after the 1817 British-Spanish treaty limiting the slave trade. Chinatown in Havana, established in the 1850s, once constituted the largest Chinese urban community in Latin America. Post-revolutionary emigration reduced the Chinese-Cuban population from approximately 25,000 in 1959 to fewer than 5,000 by the 1980s. The Buddhist Association of Cuba formed in 2004 but operates without dedicated temple facilities, practicing in private residences. Vietnamese diplomatic and technical workers during the 1970s and 1980s maintained Buddhist practice, though most returned to Vietnam following the Soviet collapse.