The Archdiocese of Porto Alegre (Latin: Archidioecesis Portalegrensis in Brasilia) is a Latin-Rite Metropolitan Archbishopric of the Roman Catholic Church in Rio Grande do Sul state, Brazil.

Archbishop Emeritus Dadeus Grings was succeeded by the current incumbent, Archbishop Jaime Spengler, who was appointed on 18 September 2013 by Pope Francis, and installed on 15 November 2013.

[1] It was erected as the Diocese of São Pedro do Rio Grande by Pope Pius IX on 7 May 1848, on territory split off from the Diocese of São Sebastião do Rio de Janeiro.

In 2014, it pastorally served around 2,547,000 Catholics (74.4% of 3,423,000 total) on 13,530 km2 in 156 parishes and 739 missions with 359 priests (203 diocesan, 156 religious), 59 deacons, 1,450 lay religious (341 brothers, 1,109 sisters), and 44 seminarians.

[citation needed] Besides administering his own Archbishopric, the Metropolitan supervises the following Suffragan Sees: