The overwhelming majority of native Canarians are Roman Catholic (76.7%) with various smaller foreign-born populations of other Christian beliefs such as Protestants.

The appearance of the Virgin of Candelaria (Patron of Canary Islands) was credited with moving the Canary Islands toward Christianity. Two Catholic saints were born in the Canary Islands: Peter of Saint Joseph de Betancur and José de Anchieta. Both born on the island of Tenerife, they were respectively missionaries in Guatemala and Brazil.

The Canary Islands are divided into two Catholic dioceses, each governed by a bishop:

Diócesis Canariense: Includes the islands of the Eastern Province: Gran Canaria, Fuerteventura and Lanzarote. Its capital was San Marcial El Rubicón (1404) and Las Palmas de Gran Canaria (1483–present). There was a previous bishopric which was based in Telde, but it was later abolished.

Diócesis Nivariense: Includes the islands of the western province: Tenerife, La Palma, La Gomera and El Hierro. Its capital is San Cristóbal de La Laguna (1819–present).