Prime Minister of Cambodia

List of Heads of Government of Cambodia (1945-Present)

Protectorate of Cambodia (1945-1949)

*King Norodom Sihanouk (18 March - 13 August 1945) (1st time)
*Son Ngoc Thanh (14 August - 16 October 1945) (1st time)
*Prince Sisowath Monireth (17 October 1945 - 15 December 1946)
*Prince Sisowath Youtevong (15 December 1946 - 15 July 1947)
*Sisowath Watchayavong (25 July 1947 - 20 February 1948)
*Chhean Vam (20 February - 14 August 1948)
*Samdech Penn Nouth (15 August 1948 - 21 January 1949) (1st time)
*Yem Sambaur (12 February - 20 September 1949 (1st time)
*Ieu Koeus (20 September - 29 September 1949)
*Yem Sambaur (29 September - 8 November 1949) (2nd time)

Associated state of Cambodia (1949–1953)

*Yem Sambaur (8 November 1949 - 28 April 1950) (3rd time)
*King Norodom Sihanouk (28 April - 30 May 1950) (2nd time)
*Prince Samdech Krom Luong Sisowath Monipong (30 May 1950 - 3 March 1951)
*Oum Chheang Sun (3 March - 12 October 1951) (1st time)
*Huy Kanthoul (13 October 1951 - 16 June 1952)
*King Norodom Sihanouk (16 June 1952 - 24 January 1953) (3rd time)
*Samdech Penn Nouth (24 January - 9 November 1953) (2nd time)

=Independent Kingdom of Cambodia (1953–1960)=

*Samdech Penn Nouth (9 November - 22 November 1953) (2nd time)
*Chan Nak (23 November 1953 - 7 April 1954)
*King Norodom Sihanouk (7 April - 18 April 1954) (4th time)
*Samdech Penn Nouth (18 April 1954 - 26 January 1955) (3rd time)
*Leng Ngeth (26 January - 3 October 1955)
*Prince Norodom Sihanouk (3 October 1955 - 5 January 1956) (5th time)
*Oum Chheang Sun (5 January - 29 February 1956) (2nd time)
*Prince Norodom Sihanouk (1 March - 24 March 1956) (6th time)
*Khim Tit (3 April - 29 July 1956)
*Prince Norodom Sihanouk (15 September - 15 October 1956) (7th time)
*Sam Yun (25 October 1956 - 7 April 1957)
*Prince Norodom Sihanouk (9 April - 7 July 1957) (8th time)
*Sim Var (26 July 1957 - 11 January 1958) (1st time)
*Ek Yi Oun (11 January - 17 January 1958)
*Samdech Penn Nouth (17 January - 24 April 1958) (4th time)
*Sim Var (24 April - 10 July 1958) (2nd time)
*Prince Norodom Sihanouk (10 July 1958 - 3 April 1960) (9th time)

=Monarchy-Regency of Cambodia (1960–1970)=

*Prince Norodom Sihanouk (3 April - 19 April 1960) (9th time)
*Pho Proeung (19 April 1960 - 28 January 1961)
*Samdech Penn Nouth (28 January - 17 November 1961) (5th time)
*Prince Norodom Sihanouk (17 November 1961 - 13 February 1962) (10th time)
*Nhiek Tioulong (13 February - 6 August 1962) (acting)
*Chau Sen Cocsal Chhum (6 August - 6 October 1962)
*Prince Norodom Kantol (6 October 1962 - 25 October 1966)
*General Lon Nol (25 October 1966 - 1 May 1967) (1st time)
*Son Sann (1 May 1967 - 31 January 1968)
*Samdech Penn Nouth (31 January 1968 - 14 August 1969) (6th time)
*General Lon Nol (14 August 1969 - 9 October 1970) (2nd time)

Khmer Republic (1970-1975)

*General Lon Nol (9 October 1970 - 11 March 1972) (2nd time)
*Prince Sisowath Sirik Matak (11 March - 18 March 1972)
*Son Ngoc Thanh (18 March - 15 October 1972) (2nd time)
*Hang Thun Hak (15 October 1972 - 6 May 1973)
*In Tam (6 May - 9 December 1973)
*Long Boret (26 December 1973 - 17 April 1975)

Democratic Kampuchea (1975–1979)

*Samdech Penn Nouth (17 April 1975 - 4 April 1976) (7th time)
*Khieu Samphan (4 April - 13 May 1976)
*Pol Pot (13 May 1976 - 7 January 1979)

People's Republic of Kampuchea (1979–1989)

*Pen Sovan, Chairman of the Council of Ministers (27 June - 5 December 1981)
*Chan Sy, Chairman of the Council of Ministers (5 December 1981 - 26 December 1984)
*Hun Sen, Chairman of the Council of Ministers (14 January 1985 - 1 May 1989)

tate of Cambodia (1989–1993)

*Hun Sen, Chairman of the Council of Ministers (1 May 1989 - 2 July 1993)
*Samdech Hun Sen and Prince Norodom Ranariddh, Joint Prime Ministers (2 July - 24 September 1993)

Kingdom of Cambodia (since 1993)

*Prince Norodom Ranariddh, First Prime Minister (24 September 1993 - 6 July 1997)
**Samdech Hun Sen, Second Prime Minister (24 September 1993 - 30 November 1998)
*Ung Huot, First Prime Minister (16 July 1997 - 30 November 1998)
*Samdech Hun Sen (since 30 November 1998)