Queen Mary Cathedral, Barranquilla, Catholic cathedral in Barranquilla, Colombia.

The cathedral in Barranquilla is a Catholic church in the city center that stands out for its modern design with a bell-shaped floor plan. The building rises on several levels and offers space for thousands of worshippers beneath a tall vaulted roof.

Work began in the mid-twentieth century following plans by an Italian architect and stretched across nearly three decades. Several changes to the design delayed completion until the eighties.

The dedication to Mary as Queen and Help of Christians dates from 1982, when the Holy See transferred the cathedral title from the old San Nicolás de Tolentino church and the apostolic nuncio Angelo Acerbi consecrated the building on 21 August. The parish itself had been created on 9 December 1968, while the cathedral was still under construction, with Father Jorge Becerra Jiménez as first parish priest. Pope John Paul II visited in July 1986.

The entrance faces Plaza de la Paz in downtown Barranquilla, where several streets converge. The main hall is large enough for several thousand visitors, and the seating spreads across multiple sections.

The roof is made of hyperbolic paraboloids, a thin concrete shell designed by Mexican engineer Jorge González Reyna, a disciple of Félix Candela. Its low weight allowed it to rest on the existing structure, but it forced the facade to be redesigned. A 74-metre bell tower proposed in 2024 would realise a tower left out of the original design for lack of funds.