The Basilica of the National Vow (Basílica del Voto Nacional), also called the is a Roman Catholic church located in the historic center of Quito, Ecuador. It is sometimes also called the Catedral Consagración de Jesús or the Basílica de San Juan. It is the largest neo-Gothic basilica in the Americas.

The basilica arose from the idea, proposed by father Julio Matovelle in 1883, of building a monument as a perpetual reminder of the consecration of Ecuador to the Sacred Heart. President  Luis Cordero issued the decree on July 23, 1883, and it was carried out by president  José María Plácido Caamaño  on March 5, 1884. The congress, in accordance with the year's budget, designated 12,000 pesos for the construction - 1,000 pesos per month, beginning in 1884. By the decree of July 3, 1885, the fourth Quitense Provincial Council turned the construction of the basilica into a religious commitment in the name of the country. In 1887, the Issodum Fathers began construction for five years, with the approval of Pope  Leo XIII. The Oblato fathers donated the land for the basilica. To continue construction, donations were accepted from believers, who provided stones in exchange for engraving their names on them. In 1895, the state established a tax on salt to continue the building.

In 1901, Father Matovelle and his Community of Missionary Monks, took charge of the construction at the request of Archbishop Pedro Rafael González Calisto. The building was designed by architect  Emilio Tarlier at the cost of 40,000 French francs. Tarlier was inspired by the Bourges Cathedral. On July 10, 1892, the first stone was placed. Between 1892 and 1909, the Heart of Mary Cathedral was constructed. The basilica was blessed by Pope John Paul II< on January 30, 1985, and it was consecrated and inaugurated on July 12, 1988.