Cathedral of Petrópolis, Neo-Gothic Catholic cathedral in Petrópolis, Brazil

The Cathedral of Saint Peter of Alcântara is a Neo-Gothic Catholic cathedral in Petrópolis, Brazil, with a tall bell tower rising from the facade. The building displays pointed arches, tracery windows, and stained glass panels depicting scenes from Christian history.

Construction began in 1884 to a Neo-Gothic design by the Bahian architect Francisco Caminhoá, inspired by cathedrals of northern France, and was carried out by contractor Manuel Pereira Jerônimo. The new mother church was inaugurated on 29 November 1925 after 37 years of work, but the main façade and tower were still missing. The façade works started in 1929 and reached rose-window level in the 1930s; the 70-metre tower was built between 1960 and 1969.

The cathedral is dedicated to Saint Peter of Alcantara, patron of the city, Brazil and the Brazilian monarchy. To the right of the entrance, the Imperial Mausoleum holds the Carrara marble sarcophagus of Emperor Pedro II and Empress Teresa Cristina, carved by Jean Magrou and Hildegardo Leão Veloso. The chapel windows show poems Pedro II wrote in exile.

The Imperial Mausoleum chapel is entered from inside the cathedral, to the right of the main entrance, while the baptistery with the 1848 font is on the left. The tower, added between 1960 and 1969, rises 70 metres and holds five bronze bells cast in Passau, Germany, weighing nine tons.

Several stained glass windows display poems written by Emperor Pedro II during his European exile. The verses express his longing for the Brazilian homeland he would never see again.