Hồ Chí Minh City Archdiocese was established on May 17, 1844, when it had the name Tây Đàng Trong Diocese. Its history in brief is as follows:
- Before 1698, many Catholics came to live in Gia Định.
- September 9,1659: with “Super Cathedram” decree, Đàng Trong Diocese was established (from Gianh River to Nha Trang) with bishop P. Lambert de la Motte.
- May 17,1844: Đàng Trong Diocese was divided into two: Đông Đàng Trong (Qui Nhơn) and Tây Đàng Trong (Sài Gòn).
- August 30,1850: Tây Đàng Trong Diocese was divided into two: Nam Vang and Tây Đàng Trong (Saigon).
- 1863: Diocesan Seminary was established.
- October 7,1877 - April 11,1880: Notre Dame Cathedral was being built.
- 1900: Archbishop Building was built.
- December 3,1924: Tây Đàng Trong Diocese was named Sài Gòn Diocese.
- November 24,1960: Sài Gòn Diocese has become Archdiocese.
- 1976: Sài Gòn Archdiocese has been named Hồ Chí Minh City Archdiocese.
- The number of diocesan priests trained from the Archdiocese from 1944 to 2011: 1,117 priests.
As of 2018, the Archdiocese has:
- 355 diocesan priests,
- 533 religious priests,
- 4,861 religious women belonging to 114 congregations and 18 institutes,
- 1,263 religious men belonging to 44 congregations and 9 institutes,
- 147 seminarians,
- 686.938 catholics.
Website of the Archdiocese: www.tgpsaigon.net