The Archdiocese of Cape Town (Latin: Archidioecesis Civitatis Capitis) is a Latin Church ecclesiastical jurisdiction or archdiocese of the Catholic Church located in Cape Town, in the south-western region of South Africa. The principal church of the archdiocese and the location of the archbishop's cathedra is the Cathedral of St. Mary of the Flight into Egypt, which also serves as the patron saint for the archdiocese.

Currently, Stephen Brislin holds the position of Archbishop of Cape Town, with Sylvester David serving as the auxiliary bishop to assist him in his pastoral responsibilities.

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The Archdiocese of Cape Town has a rich history that dates back to its establishment as the Apostolic Vicariate of Cape of Good Hope (and adjacent territories) on June 18, 1818, by Pope Pius VII. It was formed by splitting off territories from the then-Territorial Prelature of Mozambique and the Diocese of Tomé.

On April 4, 1819, it expanded its territory by gaining land from the suppressed Apostolic Prefecture of New Holland.

Over the years, it underwent several changes in its territorial boundaries. In 1834, the Apostolic Vicariate of New Holland and Van Diemen's Land was established, resulting in a loss of territory. Additionally, on June 6, 1837, the Apostolic Vicariate of Mauritius was formed, further reducing the Archdiocese's territory.

It was renamed the Apostolic Vicariate of Cape of Good Hope, Western District on 30 July 1847, losing territory to establish the Apostolic Vicariate of Cape of Good Hope, Eastern District.

On 3 August 1874, it lost territory to establish the Apostolic Prefecture of Cape of Good Hope, Central District.

It was renamed the Apostolic Vicariate of Cape Town on 13 June 1939.

Pope Pius XII elevated it to the rank of a metropolitan archdiocese on 11 January 1951.

On 18 August 1986, it lost territory to establish the Mission sui juris of Saint Helena, Ascension and Tristan da Cunha off its Atlantic Coast.

The Archdiocese of Cape Town encompasses a vast geographical area, which is divided into 73 parishes. Each parish is mandated to have its own pastoral council and finance council. Representatives from these parish councils, along with members of other bodies, collectively constitute the Archdiocesan Pastoral Council. This council's primary responsibility is to provide advice to the archbishop on specific matters.

The archdiocese covers a total area of 30 892 square kilometers and is home to a population of 3 324 539 people, with 215 187 adhering to the Catholic faith. The administrative hub of the archdiocese is known as the chancery and is situated at 12 Bouquet Street in Cape Town.

Geographically, the archdiocese is centered around the city of Cape Town and encompasses the southernmost tip of the African continent. It is bordered by the Atlantic Ocean to the west, the southern boundaries of the Van Rhynsdorp district to the north, the western boundaries of the Calvinia, Ceres, Tulbagh, Worcester, Robertson, and Swellendam districts to the east, and the Indian Ocean to the south. The civil districts within the ecclesiastical jurisdiction of the archdiocese include Cape, Wynberg, Simon's Town, Bellville, Somerset West, Stellenbosch, Paarl, Wellington, Caledon, Bredasdorp, Malmesbury, Piketberg, and Clanwilliam.

Stephen Brislin serves as the Archbishop of Cape Town, having assumed this role on February 7, 2010. His installation took place on the Solemnity of Our Lady of the Flight into Egypt, which is the patronal feast of the archdiocese.

The ecclesiastical province comprises the Metropolitan's own archdiocese and the suffragan sees :

• Roman Catholic Diocese of Aliwal
• Roman Catholic Diocese of De Aar
• Roman Catholic Diocese of Oudtshoorn
• Roman Catholic Diocese of Port Elizabeth
• Roman Catholic Diocese of Queenstown.

• Edward Bede Slater (1818.06.18 – 1831; died 1832), Titular Bishop of Ruspæ (1818.06.18 – 1832.07.15)
• William Placid Morris (1831.08.09 – 1837.06.06), later Apostolic Vicar of Mauritius (Mauritius) (1837.06.06 – 1840); remained Titular Bishop of Troas (1831.08.09 – 1872.02.18)
• Patrick Raymond Griffith, Titular Bishop of Paleopolis (Asia Minor) (1837.06.06 – 1862.06.18) (6 June 1837 – 1847.07.30 see below)

• Patrick Raymond Griffith, (see above 1847.07.30 – 18 June 1862)
• Thomas Grimley (18 June 1862 - 1871.01.29), Titular Bishop of Antigonea (1860.12.18 – 1871.01.29); succeeding as former Coadjutor Apostolic Vicar of Cape of Good Hope, Western District (1860.12.18 – 1862.06.18)
• John Leonard (1872.10.1 – 19 February 1908), Titular Bishop of Charadrus (1872.10.01 – 1908.02.19)
• John Rooney (1908.02.19 – 1925), Titular Bishop of Sergiopolis (antea Resapha) (1886.01.29 – 1927.02.26); succeeding as previous Coadjutor Vicar Apostolic of Cape of Good Hope, Western District (1886.01.29 – 1908.02.19)
• Bernard Cornelius O'Riley (1925.07.15 – 1932.06.06), Titular Bishop of Phoba (1925.07.15 – 1956.07.21)
• Franziskus Hennemann (1933.06.30 – 1939.06.13 see below), Titular Bishop of Coptus (1913.07.16 – 1951.01.17); previously djutor Vicar Apostolic of Cameroun (Cameroon) (1913.07.16 – 1914.11.07), succeeding as Vicar Apostolic of Cameroun (Cameroon) (1914.11.07 – 1922.06.26), next Apostolic Prefect of Cape of Good Hope, Central District (1922.06.26 – 1933.06.30)

• Franziskus Hennemann (see above 1939.06.13 – 1949; died 1951)
• Owen McCann (1950.03.12 – 1951.01.11 see below), Titular Bishop of Stectorium (1950.03.12 – 1951.01.11)

• Owen McCann (see above 1951.01.11 – 1984.10.20; died 1994), also President of the Inter-Regional Meeting of Bishops of Southern Africa (1961 – 1974), Cardinal-Priest of S. Prassede (1965.02.25 – 1994.03.26), President of the Southern African Catholic Bishops' Conference (1967 – 1974)
• Stephen Naidoo (1984.10.20 – 1989.07.01); previously Titular Bishop of Mammilla (1974.07.01 – 1974.08.02); Auxiliary Bishop of Cape Town (1974.07.01 – 1984.10.20), Titular Bishop of Aquæ Flaviæ (1974.08.02 – 1984.10.20)
• Lawrence Patrick Henry (1990.07.07 – 2009.12.18), previously Titular Bishop of Cenculiana (1987.04.27 – 1990.07.07) & Auxiliary Bishop of Cape Town (1987.04.27 – 1990.07.07)
• Stephen Brislin (18 December 2009 – ...), also President of Inter-Regional Meeting of Bishops of Southern Africa (2012.08 – 2016.10), President of Southern African Catholic Bishops' Conference (2013.02 – 2019.02); previously Bishop of Kroonstad (South Africa) (2006.10.17 – 2009.12.18), Cardinal-Priest of Santa Maria Domenica Mazzarello (2023.09.30 – )

• Thomas Grimley (1860–1862)
• John Rooney (1886–1908)

• Reginald Cawcutt (1992–2002, died 2022)
• Sylvester Anthony John David (2019 -)
• Lawrence Patrick Henry (1987–1990), appointed Archbishop here
• Stephen Naidoo (1974–1984), appointed Archbishop here

• Francisco Fortunato de Gouveia, appointed Bishop of Oudtshoorn in 2010
• Ernest Arthur Green, appointed Bishop of Port Elizabeth in 1955
• Noel Andrew Rucastle, appointed Bishop of Oudtshoorn in 2020

• Roman Catholicism in South Africa

• Official site
• GCatholic.org, with incumbent biography links
• Catholic-Hierarchy

33°55′42″S 18°25′10″E / 33.92833°S 18.41944°E / -33.92833; 18.41944