Archdiocese of Madras and Mylapore Archidioecesis Madraspolitanus et Meliaporensis சென்னை-மயிலை உயர்மறைமாவட்டம்
St. Thomas Cathedral Basilica, The Mother Church of the Archdiocese
Location
Country	India
Territory	Tamil Nadu
Ecclesiastical province	Madras and Mylapore
Metropolitan	Chennai
Statistics
Area	3,160 km2 (1,220 sq mi)
Population - Total - Catholics	(as of 2018) 9,760,300 661,740 (5.6%)
Information
Denomination	Roman Catholic
Rite	Latin Rite
Established	13 November 1952 (Papal Bull, ‘Ex Primaevae Ecclesiae’ by Pope Pius XII)
Cathedral	St. Thomas Cathedral Basilica, Santhome
Co-cathedral	St. Mary of the Angels Co-Cathedral, Georgetown
Secular priests	152
Current leadership
Pope	Francis
Metropolitan Archbishop	George Antonysamy
Vicar General	Fr. Stanley Sebastian
Bishops emeritus	Malayappan Chinnappa (2005-2012)

The Roman Catholic Archdiocese of Madras and Mylapore/Madras and Myliapor (Latin: Madraspolitan(us) et Meliaporen(sis)) is an archdiocese based in the city of Madras (now Chennai), in India. It took also the name of the ancient diocese of Mylapore, now a part of Chennai.^[1]

• 9 January 1606: erection of the diocese of Mylapore by pope Paul V separated from the Roman Catholic Diocese Of Cochin, by agreement with the king of Portugal who received power to appoint bishops and priests and, in a general way, to look after the evangelization of the area (Padroado system and jurisdiction)
• 1642: Madras Capuchin Mission founded by French Capuchin Missionary Fr. Ephrem de Nevers was Established as Prefecture Vicariate of Fort Saint George This was an independent jurisdiction of the Propaganda Fide from the Padroado Diocese of São Tomé of Meliapore
• 1832: Renamed as Apostolic Vicariate of Madras
• 1 September 1886: Promoted as Metropolitan Archdiocese of Madras
• 10 October 1950: The Padroado system is cancelled. The Diocese of Mylapore comes under the jurisdiction of the 'Propaganda Fide'.
• 13 November 1952: Mylapore and Madras are merged into the renamed 'Metropolitan Archdiocese of Madras and Mylapore' (Bull Ex primaevae ecclesiae of Pius XII).

George Antonysamy is appointed as the Archbishop of Historical Metropolitan Roman Catholic Archdiocese of Madras–Mylapore on 21st November 2012. He was installed as the 6th Archbishop of Madras–Mylapore on 27th January 2013.

• • Archbishop George Antonysamy (21 November 2012 – present); formerly, Apostolic Nuncio (Liberia, Gambia, & Sierra Leone)
  • Archbishop Malayappan Chinnappa, S.D.B. (1 April 2005 – 21 November 2012)
  • Archbishop James Masilamony Arul Das (11 May 1994 – 30 August 2004)
  • Archbishop Casimir Gnanadickam, S.J. (26 January 1987 – 10 November 1993)
  • Archbishop Anthony Rayappa Arulappa (1 February 1966 – 26 January 1987)
  • Archbishop Louis Mathias, S.D.B. (13 November 1952 – 2 August 1965)

• • Archbishop Louis Mathias, S.D.B. (25 March 1935 – 13 November 1952)
  • Archbishop Eugène Mederlet, S.D.B. (3 July 1928 – 12 December 1934)
  • Archbishop Giovanni Aelen, M.H.M. (13 February 1911 – 1928)
  • Archbishop Joseph Colgan (19 May 1882 – 13 February 1911)

• • Bishop Stephen Fennelly (1868-1880)
  • Bishop John Fennelly (1841-1868)
  • Bishop Patrick Joseph Carew (1840-1841)
  • Bishop Daniel O'Connor, O.S.A. (1834-1840)

San Thome Church, officially known as St Thomas Cathedral Basilica and National Shrine of Saint Thomas, is a minor basilica of the Catholic Church and the Seat of power of the Roman Catholic Archdiocese of Madras and Mylapore in India, at the Santhome neighbourhood of Chennai, in Tamil Nadu. The present structure dates to 1523 AD, when it was rebuilt by the Portuguese over what was believed to be the tomb of Thomas the Apostle. In 1896, it was renovated in the Madras province according to neo-Gothic designs, as was favoured by British architects in the late 19th century.

St. Mary's Co-Cathedral is a Catholic church in Armenian Street, Chennai, India. Constructed by Capuchins in 1658, it is one of the oldest churches in the former British India. For a long time Cathedral of the diocese it received the title of co-cathedral when the seat of the Roman Catholic Archdiocese of Madras and Mylapore was transferred to San Thome Basilica.

The Archbishop House is located in Santhome, Mylapore in Chennai next to the San Thome Basilica. The Archbishop house is the residence of the head and Archbishop of Roman Catholic Archdiocese of Madras and Mylapore.

• Diocese of Chingleput
• Diocese of Coimbatore
• Diocese of Ootacamund
• Diocese of Vellore

Saint Thomas the Apostle, is the primary patron of this Archdiocese. According to tradition, Saint Thomas, one of the twelve Apostles of Jesus Christ walked on the sands of Mylapore and preached the Gospel to the people who embraced Christianity. This great Apostle was martyred on St.Thomas Mount, near Mylapore in the year 72 AD and his mortal remains were buried in Santhome in the Church built by him.

• The tomb of St. Thomas the Apostle is in Chennai.^[2]
• Servant of God, Mother Thatipatri Gnanamma^[2]

• Oblates of Mary Immaculate
• Brothers of St.Patrick's
• Carmelites of Mary Immaculate
• Congregation of the Blessed Sacrament
• Congregation of the Missions
• Congregation of the Holy Redeemer
• Herald of Good News
• Holy Cross Brothers of Sacred Heart
• Hospitaller Brothers of St.John of God
• Missionaries of Mary Immaculate
• Missionaries of St.Francis De Sales
• Missionary Brothers of Charity
• Monfort Brothers of St.Gabriel
• Order of Friars Minor (Franciscans)
• Order of Friars Minor (Capuchins)
• Salesians of Don Bosco
• Servants of Charity
• Society of Jesus
• Society of St.Paul
• Sons of Immaculate Heart of Mary

• Archdioceseofmadreasmylapore.in
• GCatholic.org
• Catholic Hierarchy

13°02′01″N 80°16′39″E / 13.0337°N 80.2775°E / 13.0337; 80.2775