| Name | Took Office | Left Office | Note | |
| 1 | Jean Marie Arsène Cédile | 23 Sep 1945 | 5 Oct 1945 | Acting |
| 2 | Albert Torel | 1948 | 1948 | Acting |
| Name | Took Office | Left Office | Note | |
| 1 | Nguyễn Văn Thinh | 26 March 1946 | 30 May 1946 | Cochinchinese Democratic Party |
| Name | Took Office | Left Office | Note | |
| 1 | Nguyễn Văn Thinh | 1 June 1946 | 10 November 1946 | Cochinchinese Democratic Party. Committed suicide in office. |
| 2 | Nguyễn Văn Xuân, 1st time | 15 November 1946 | 7 December 1946 | Military |
| 3 | Lê Văn Hoach | 7 December 1946 | 8 October 1947 | None |
| Name | Took Office | Left Office | Note | |
| 1 | Nguyễn Văn Xuân, 2nd time | 8 October 1947 | 27 May 1948 | Name of the government was changed to "Republic of South Vietnam" on October 8, 1947.[1] Also called "Provisional Government of South Vietnam." |
| Name | Took Office | Left Office | Note | |
| Nguyễn Văn Xuân | 27 May 1948 | 14 June 1949 | The name "Central Government of Vietnam" reflects an expectation of merger with the North. The French promised a merger, but delayed due to war with Vietminh. |
| Name | Took Office | Left Office | Party | Note | |
| 1 | Bảo Đại | 13 June 1949 | 30 April 1955 | Non Party | Title was "Head of State" as Bảo Đại had abdicated as emperor in 1945. |
| 2 | Ngô Đình Diệm | 30 April 1955 | 26 Oct 1955 | Front of National Salvation | Acting |
| Name | Took Office | Left Office | Party | Note | |
| 1 | Bảo Đại | 14 June 1949 | 21 January 1950 | None | None |
| 2 | Nguyễn Phan Long | 21 January 1950 | 26 April 1950 | ??? | None |
| 3 | Trần Văn Hữu | 27 April 1950 | 6 June 1952 | Non Party | None |
| 4 | Nguyễn Văn Tâm | 6 June 1952 | 17 December 1953 | Non Party | None |
| 5 | Nguyễn Phúc Bửu Lộc | 12 January 1954 | 16 June 1954 | None | None |
| 6 | Ngô Đình Diệm | 26 June 1954 | 26 October 1955 | Front of National Salvation | Prime Minister until October 26, 1955 when he abolished the monarchy and proclaimed himself President of the Republic of Vietnam. |
| Name | Took Office | Left Office | Party | Note | |
| 1 | Ngô Đình Diệm | 26 October 1955 | 2 November 1963 | Can Lao Party | Died in coup d'état |
| 2 | Dương Văn Minh, 1st time | 2 November 1963 | 30 January 1964 | Military | chairman, Military Revolutionary Council |
| 3 | Nguyễn Khánh, 1st time | 30 January 1964 | 8 February 1964 | Military | None |
| 4 | Dương Văn Minh, 2nd time | 8 February 1964 | 16 March 1964 | Military | None |
| 5 | Nguyễn Khánh, 2nd time | 16 March 1964 | 27 August 1964 | Military | None |
| 6 | Provisional Leadership Committee | 27 August 1964 | 8 September 1964 | Military | Committee: Duong Van Minh, Nguyen Khanh and Tran Thien Khiem |
| 7 | Dương Văn Minh, 3rd time | 8 September 1964 | 26 October 1964 | Military | chairman, Provisional Leadership Committee |
| 8 | Phan Khắc Sửu | 26 October 1964 | 14 June 1965 | Civilian appointed by military | None |
| 9 | Nguyễn Văn Thiệu | 14 June 1965 | 21 April 1975 | Military; National Social Democratic Front (1968- ) | Election: 1967 and 1971. |
| 10 | Trần Văn Hương | 21 April 1975 | 28 April 1975 | ??? | acting |
| 11 | Dương Văn Minh, 4th time | 28 April 1975 | 30 April 1975 | Appointed by National Assembly | acting |
| Name | Took Office | Left Office | Party | Note | |
| 1 | Nguyen Ngoc Tho | 4 November 1963 | 30 January 1964 | Civilian in military junta | None |
| 2 | Nguyen Khanh, 1st time | 8 February 1964 | 29 August 1964 | Military | None |
| 3 | Nguyen Xuan Oanh, 1st time | 29 August 1964 | 3 September 1964 | Civilian in military junta | acting |
| 4 | Nguyen Khanh, 2nd time | 3 September 1964 | 4 November 1964 | Military | None |
| 5 | Tran Van Huong, 1st time | 4 November 1964 | 28 January 1965 | Civilian in military junta | None |
| 6 | Nguyen Xuan Oanh, 2nd time | 28 January 1965 | 15 February 1965 | Civilian in military junta | acting |
| 7 | Phan Huy Quat | 16 February 1965 | 8 June 1965 | Dai Viet Quoc Dan Dang, civilian in military junta | None |
| 8 | Nguyen Cao Ky | 19 June 1965 | 31 October 1967 | Military | None |
| 9 | Nguyen Van Loc | 31 October 1967 | 17 May 1968 | None | |
| 10 | Tran Van Huong, 2nd time | 28 May 1968 | 1 September 1969 | ??? | None |
| 11 | Tran Thien Khiem | 1 September 1969 | 4 April 1975 | None | |
| 12 | Nguyen Ba Can | 4 April 1975 | 24 April 1975 | Dan Chu Party (Democracy Party) | None |
| 13 | Vu Van Mau | 28 April 1975 | 30 April 1975 | Forces for National Reconciliation | None |
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