The Buenos Aires Metropolitan Cathedral (Spanish: Catedral Metropolitana de Buenos Aires) is the main Catholic church in Buenos Aires, Argentina. It is located in the city center, overlooking Plaza de Mayo, on the corner of San Martín and Rivadavia streets, in the San Nicolás neighbourhood. It is the mother church of the Archdiocese of Buenos Aires.
The Cathedral of Buenos Aires was rebuilt several times since its humble origins in the 16th century. The present building is a mix of architectural styles, with an 18th-century nave and dome and a severe, 19th-century Neoclassical façade without towers. The interior keeps precious 18th-century statues and altarpieces, as well as abundant Neo-Renaissance and Neo-Baroque decoration.