St Paul's Cathedral (Portuguese: Catedral de São Paulo) is an Anglican cathedral in Lisbon, seat of the Lusitanian Catholic Apostolic Evangelical Church,[1] which is a member church of the Anglican Communion.

It is situated on Rua das Janelas Verdes, in the freguesia of Prazeres.

Built in Mannerist architectural style, with its simplicity according to the rules of the Order of the Discalced Carmelites.

[3] After the abolition of the religious order and dismissal of the friars, the complex was converted into barracks in 1835, serving for the seventeenth battalion of the National Guard of Portugal [pt], and the headquarters of the police station since the following year.

[4] In 1872, the building was put up for sale at a public auction, the property was bought by the Presbyterian Free Church of Scotland, which generated a lot of controversy due to the religious issue.