List of Prime Ministers of Iran Prime Ministers of Iran (1906–1989) Prime Ministers of Iran (1906–1989)

| Born_Died | Entered_office | Left_office | Political_party | Head_of_State |
|---|---|---|---|---|
| 1871–1935 | 20 May 1918 | 2 August 1918 | Constitutional Movement | Ahmad Shah Qajar |
| 1869–1955 | 2 August 1918 | 20 August 1918 | Constitutional Movement | Ahmad Shah Qajar |
| 1871–1935 | 20 August 1918 | 16 October 1920 | Constitutional Movement | Ahmad Shah Qajar |
| 1878–1967 | 16 October 1920 | 21 February 1921 (deposed) | Independent | Ahmad Shah Qajar |
| 1888–1969 | 21 February 1921 | 4 June 1921 | Homeland Party | Ahmad Shah Qajar |
| 1876–1955 | 4 June 1921 | 12 October 1921 | Democratic Party | Ahmad Shah Qajar |
| 1880–1920 | 12 October 1921 | 20 January 1922 | Democratic Party | Ahmad Shah Qajar |
| 1871–1935 | 20 January 1922 | 11 June 1922 | Constitutional Movement | Ahmad Shah Qajar |
| 1876–1955 | 11 June 1922 | 30 January 1923 | Democratic Party | Ahmad Shah Qajar |