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What’s the difference between a basilica and a cathedral?
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A superlative basilica An Orthodox cathedral An Anglican cathedral Helsinki Cathedral in Helsinki, Finland, with white neoclassical columns and green domes, viewed from the steps with people sitting and walking in front. Basilica and Convent of Santo Domingo The Basilica of Sant'Apollinare in Classe near Ravenna, Italy, features a brick facade with arched windows and a round bell tower, surrounded by trees and greenery. The ornate Baroque facade of the Cathedral of Santiago de Compostela in Galicia, Spain, with twin towers and arched entryways.
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A superlative basilica
A superlative basilica The Roman Catholic Basilica of Our Lady of Peace of Yamoussoukro, CĂ´te d'Ivoire. Despite being the largest church in the world, the basilica is not the seat of the dioscean bishop and is thus not a cathedral.

What’s the difference between a basilica and a cathedral?

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Melissa Petruzzello
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•History

The terms cathedral and basilica can sound interchangeable—both conjure images of grand, historic churches. But they reflect two entirely different ways of defining a church: One is rooted in function and hierarchy, the other in recognition and tradition.

An Orthodox cathedral
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An Orthodox cathedralThe Uspenski Cathedral is a Finnish Orthodox cathedral in Helsinki. Completed in 1868, it is the largest Orthodox church in Europe.
An Anglican cathedral
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An Anglican cathedral The Cathedral Church of Christ on Lagos Island, Lagos, is the oldest Anglican cathedral in Nigeria.
Helsinki Cathedral in Helsinki, Finland, with white neoclassical columns and green domes, viewed from the steps with people sitting and walking in front.
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A Lutheran cathedralThe Helsinki Cathedral is a cathedral of the Evangelical Lutheran Church of Finland.

A cathedral is the principal church of a diocese, the geographic area over which a bishop presides. The term is most commonly used in Roman Catholic, Lutheran, Anglican, and Eastern Orthodox traditions, all of which maintain an episcopal form of church government. The word cathedral comes from the Latin cathedra, meaning “chair,” referring to the bishop’s ceremonial seat within the church. A cathedral is thus the main administrative and liturgical center of a diocese. There are cathedral churches of simple diocesan bishops, of archbishops or metropolitans, of primates, of patriarchs, and, in the Roman Catholic Church, of the pope (St. John Lateran is the cathedral church of Rome and thus of the pope). Although many cathedrals are monumental architectural works, a relatively modest building can be a cathedral if it houses the bishop’s seat. While each diocese has only one cathedral, a city may have several if multiple traditions with bishops are present; London, for example, has both the Roman Catholic Westminster Cathedral and the Church of England’s Saint Paul’s Cathedral. Similarly, Helsinki has both a Lutheran and a Finnish Orthodox cathedral.

Basilica and Convent of Santo Domingo
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Basilica and Convent of Santo DomingoLima's Basilica and Convent of Santo Domingo complex houses the relics of St. Rose of Lima and St. Martin de Porres, two major saints of Peru.
The Basilica of Sant'Apollinare in Classe near Ravenna, Italy, features a brick facade with arched windows and a round bell tower, surrounded by trees and greenery.
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Basilica of Sant'ApollinareDating from the 6th century, the Basilica of Sant'Apollinare in Classe, near Ravenna, Italy, is a UNESCO World Heritage site.

A basilica, by contrast, is a title of honor granted by the pope to a Roman Catholic church that holds particular significance. This importance may derive from its antiquity, its role as a major pilgrimage site, its association with a saint or relic, or its historical or spiritual value. Basilicas are divided into “major” (all located in Rome) and “minor” (found worldwide) basilicas and can confer special penitential privileges to the faithful. As with a cathedral, a basilica may be a relatively humble edifice, though many are spectacular buildings. A Roman Catholic church can be both a cathedral and a basilica if it is the bishop’s seat and has also been specially honored by the pope.

The ornate Baroque facade of the Cathedral of Santiago de Compostela in Galicia, Spain, with twin towers and arched entryways.
A cathedral and a basilicaThe Cathedral of Santiago de Compostela in Spain is the terminus of the Camino de Santiago, one of the most famous pilgrimages in the world. The church serves as the seat of the archbishop and is honored as a basilica for its spiritual importance.
Melissa Petruzzello