Notre-Dame Cathedral Basilica of Saigon (Vietnamese: Vương cung thánh đường Chính tòa Đức Bà Sài Gòn or Nhà thờ Đức Bà Sài Gòn; French: Basilique-Cathédrale Notre-Dame de Saïgon), officially Cathedral Basilica of Our Lady of The Immaculate Conception (Vietnamese: Vương cung thánh đường Chính tòa Đức Mẹ Vô nhiễm Nguyên tội; French: Basilique-Cathédrale Notre-Dame de l'Immaculée Conception) is a cathedral located in the downtown of Ho Chi Minh City, Vietnam.

Thus in 1863, Admiral Bonard decided to build a wooden church on the bank of Charner canal (Kinh Lớn).

One can see the granite plate inside the main entry gate commemorating the start and completion dates and designer.

The total height of the cathedral to the top of the Cross is 60.5 m. In the flower garden in front of the cathedral, there was a bronze statue of Pigneau de Behaine (also called Bishop of Adran) leading Prince Cảnh, the son of Emperor Gia Long by his right hand.

In 1959, Bishop Joseph Pham Van Thien, whose jurisdiction included Saigon parish, attended the Marian Congress held in Vatican and ordered a statue of Our Lady of Peace made with granite in Rome.

In 1960, Pope John XXIII erected Roman Catholic dioceses in Vietnam and assigned archbishops to Hanoi, Huế and Saigon.

In 1962, Pope John XXIII anointed the Saigon Chief Cathedral, and conferred it the status of a basilica.

During October 2005, the statue was reported to have shed tears, attracting thousands of people and forcing authorities to stop traffic around the cathedral.

There are 56 glass squares supplied by the Lorin firm of Chartres, the French town famous for the 13th century stained-glass windows of its cathedral.