List of Prime Ministers of Iceland:
| 01 |
Jón Magnússon |
| Term of Office |
4 January 1917 – 7 March 1922 |
| 02 |
Sigurður Eggerz |
| Term of Office |
7 March 1922 – 22 March 1924 |
| 03 |
Jón Magnússon |
| Term of Office |
22 March 1924 – 23 June 1926 |
| 04 |
Magnús Guðmundsson |
| Term of Office |
23 June 1926 – 8 July 1926 |
| 05 |
Jón Þorláksson |
| Term of Office |
8 July 1926 – 28 August 1927 |
| 06 |
Tryggvi Þórhallsson |
| Term of Office |
28 August 1927 – 3 June 1932 |
| 07 |
Ásgeir Ásgeirsson |
| Term of Office |
3 June 1932 – 28 July 1934 |
| 08 |
Hermann Jónasson |
| Term of Office |
28 July 1934 – 16 May 1942 |
| 09 |
Ólafur Thors |
| Term of Office |
16 May 1942 – 16 December 1942 |
| 10 |
Björn Þórðarson |
| Term of Office |
16 December 1942 – 21 October 1944 |
| 11 |
Ólafur Thors |
| Term of Office |
21 October 1944 – 4 February 1947 |
| 12 |
Stefán Jóhann Stefánsson |
| Term of Office |
4 February 1947 – 6 December 1949 |
| 13 |
Ólafur Thors |
| Term of Office |
6 December 1949 – 14 March 1950 |
| 14 |
Steingrímur Steinþórsson |
| Term of Office |
14 March 1950 – 11 September 1953 |
| 15 |
Ólafur Thors |
| Term of Office |
11 September 1953 – 24 July 1956 |
| 16 |
Hermann Jónasson |
| Term of Office |
24 July 1956 – 23 December 1958 |
| 17 |
Emil Jónsson |
| Term of Office |
23 December 1958 – 20 November 1959 |
| 18 |
Ólafur Thors |
| Term of Office |
20 November 1959 – 8 September 1961 |
| 19 |
Bjarni Benediktsson |
| Term of Office |
8 September 1961 – 31 December 1961 |
| 20 |
Ólafur Thors |
| Term of Office |
1 January 1962 – 14 November 1963 |
| 21 |
Bjarni Benediktsson |
| Term of Office |
14 November 1963 – 10 July 1970 |
| 22 |
Jóhann Hafstein |
| Term of Office |
10 October 1970 – 14 July 1971 |
| 23 |
Ólafur Jóhannesson |
| Term of Office |
14 July 1971 – 28 August 1974 |
| 24 |
Geir Hallgrímsson |
| Term of Office |
28 August 1974 – 1 September 1978 |
| 25 |
Ólafur Jóhannesson |
| Term of Office |
1 September 1978 – 15 October 1979 |
| 26 |
Benedikt Gröndal |
| Term of Office |
15 October 1979 – 8 February 1980 |
| 27 |
Gunnar Thoroddsen |
| Term of Office |
8 February 1980 – 26 May 1983 |
| 28 |
Þorsteinn Pálsson |
| Term of Office |
8 July 1987 – 28 September 1988 |
| 29 |
Steingrímur Hermannsson |
| Term of Office |
28 September 1988 – 30 April 1991 |
| 30 |
Davíð Oddsson |
| Term of Office |
30 April 1991 – 15 September 2004 |
| 31 |
Halldór Ásgrímsson |
| Term of Office |
15 September 2004 – 15 June 2006 |
| 32 |
Geir Haarde |
| Term of Office |
15 June 2006 – 1 February 2009 |
| 33 |
Jóhanna Sigurðardóttir |
| Term of Office |
1 February 2009 – 23 May 2013 |
| 34 |
Sigmundur Davíð Gunnlaugsson |
| Term of Office |
23 May 2013 – 7 April 2016 |
| 35 |
Sigurður Ingi Jóhannsson |
| Term of Office |
7 April 2016 – 11 January 2017 |
| 36 |
Bjarni Benediktsson |
| Term of Office |
11 January 2017 – 30 November 2017 |
| 37 |
Katrín Jakobsdóttir |
| Term of Office |
30 November 2017 |
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