Religion in the Philippines

Catholicism arrived with Spanish colonization in 1565 and became the dominant faith within a few generations. Devotion to the Santo Niño, the image of the Holy Child Jesus, is one of the most visible expressions of Filipino Catholic practice, marked annually through the Sinulog festival in Cebu and the Ati-Atihan festival in Aklan. Holy Week draws widespread participation nationwide, including the Visita Iglesia tradition of visiting seven churches.

Many of the country's oldest structures are Catholic churches from the Spanish period, including San Agustin Church in Manila, built in 1607, and Paoay Church in Ilocos Norte, known for its earthquake resistant buttressing. Albay holds the highest Roman Catholic share of any province at 96.2 percent, and the City of Mandaue leads all highly urbanized cities at 95.2 percent.

Islam reached the Philippine archipelago in the 14th century through regional trade networks, more than two centuries before Spanish colonization introduced Catholicism. It is the majority religion across BARMM, with Tawi-Tawi recording the highest provincial share nationwide at 97.2 percent, followed by Sulu at 95.2 percent and Lanao del Sur at 94.7 percent.

Major Muslim Filipino ethnolinguistic groups include the Maguindanao, Maranao, Tausug, and Sama peoples. Outside BARMM, Islam registers double digit shares in Lanao del Norte, Sultan Kudarat, Cotabato, Zamboanga Sibugay, Sarangani, and Palawan, the only province outside Mindanao where this holds true.

Founded in the Philippines in 1914, Iglesia ni Cristo is recognizable nationwide by its distinctive spired church architecture. It is the third largest religious affiliation in the country by household population, behind only Roman Catholic and Islam.

Protestant Christianity entered the Philippines during the American colonial period beginning in 1898, introducing Baptist, Methodist, and later evangelical congregations. Aglipay, formally the Iglesia Filipina Independiente, is a Philippine founded Christian church that split from Roman Catholicism in 1902 and remains among the top affiliations nationally at 0.6 to 0.8 percent depending on how it is reported.

Before Catholicism and Islam arrived, animist belief systems were practiced throughout the archipelago. Cordillera shows the clearest remaining trace of this in the census data: Mountain Province records the lowest Roman Catholic share of any province outside BARMM at 41.9 percent, with Ifugao at 49.2 percent, Benguet at 56.6 percent, Apayao at 56.9 percent, and Kalinga at 62.6 percent. In each case, the gap is filled mostly by other Christian denominations rather than by indigenous religion as a distinct formal census category, reflecting syncretic practice that blends Christian and indigenous belief rather than a separate parallel religion.

The Philippine Constitution guarantees freedom of religion. This is reflected in national policy: Eid al Fitr and Eid al Adha are recognized as regular national holidays alongside Christian observances such as Christmas and Holy Week.