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The Minister of Social Affairs (Icelandic: Félagsmálaráðherra) was a cabinet position which existed between 17 April 1939 and 1 January 2008. The Ministry of Social Affairs existed alongside the minister after 1 January 1970 when the Cabinet of Iceland Act no. 73/1969 took effect since ministries had not formally existed separately from the ministers.^[1] On 1 January 2008 the position became Minister of Social Affairs and Social Security (Icelandic: Félags- og tryggingamálaráðuneytið) and the ministry itself was also renamed accordingly. On 31 December 2010 the Ministry of Social Affairs and Social Security was merged with the Ministry of Health and Social Security to form the Ministry of Welfare.

Nº	Minister			Took office	Left office	Duration	Party	Cabinet
1			Stefán Jóhann Stefánsson (1894–1980)	17 April 1939	17 January 1942	2 years, 9 months (1,006)	SDP	Hermann Jónasson III
								Hermann Jónasson IV
2			Jakob Möller (1880–1955)	17 January 1942	16 December 1942	10 months, 29 days (333 days)	IP	Ólafur Thors I
No minister in office between 16 December 1942 and 22 December 1942.
3			Jóhann Sæmundsson (1905–1955)	22 December 1942	19 April 1943	3 months, 28 days (118 days)	N/A	Björn Þórðarson
4			Björn Þórðarson (1879–1963)	19 April 1943	21 October 1944	1 year, 6 months, 2 days (551 days)	PP
5			Finnur Jónsson (1894–1951)	21 October 1944	4 February 1947	2 years, 3 months, 14 days (836 days)	SDP	Ólafur Thors II
(1)			Stefán Jóhann Stefánsson (1894–1980)	4 February 1947	6 December 1949	2 years, 10 months, 2 days (1,036 days)	SDP	Stefán Jóhann Stefánsson
6			Ólafur Thors (1892–1964)	6 December 1949	14 March 1950	3 months, 8 days (98 days)	IP	Ólafur Thors III
7			Steingrímur Steinþórsson (1893–1966)	14 March 1950	24 July 1956	6 years, 4 months, 10 days (2,324 days)	PP	Steingrímur Steinþórsson
								Ólafur Thors IV
8			Hannibal Valdimarsson (1903–1991)	24 July 1956	23 December 1958	2 years, 4 months, 29 days (882 days)	PA	Hermann Jónasson V
9			Friðjón Skarphéðinsson (1909–1996)	23 December 1958	20 November 1959	10 months, 28 days (332 days)	SDP	Emil Jónsson
10			Emil Jónsson (1902–1986)	20 November 1959	31 August 1965	5 years, 9 months, 11 days (2,111 days)	SDP	Ólafur Thors V
								Bjarni Benediktsson
11			Eggert Gíslason Þorsteinsson (1925–1995)	31 August 1965	10 July 1970	4 years, 10 months, 10 days (1,774 days)	SDP	Bjarni Benediktsson
(10)			Emil Jónsson (1902–1986)	10 July 1970	14 July 1971	1 year, 4 days (369 days)	SDP	Bjarni Benediktsson
								Jóhann Hafstein
(8)			Hannibal Valdimarsson (1903–1991)	14 July 1971	16 July 1973	2 years, 2 days (733 days)	ULL	Ólafur Jóhannesson I
12			Björn Jónsson (1916–1985)	16 July 1973	6 May 1974	9 months, 20 days (294 days)	ULL
13			Magnús Torfi Ólafsson (1923–1998)	6 May 1974	28 August 1974	3 months, 22 days (114 days)	ULL
14			Gunnar Thoroddsen (1910–1983)	28 August 1974	1 September 1978	4 years, 4 days (1,465 days)	IP	Geir Hallgrímsson
15			Magnús Helgi Magnússon (1922–2006)	1 September 1978	8 February 1980	1 year, 5 months, 7 days (525 days)	SDP	Ólafur Jóhannesson II
								Benedikt Gröndal
16			Svavar Gestsson (1944–2020)	8 February 1980	26 May 1983	3 years, 3 months, 18 days (1203 days)	PA	Gunnar Thoroddsen
17			Alexander Stefánsson (1922–2008)	26 May 1983	8 July 1987	4 years, 1 month, 12 days (1,504 days)	PP	Steingrímur Hermannsson I
18			Jóhanna Sigurðardóttir (1942–)	8 July 1987	24 June 1994	6 years, 11 months, 16 days (2,543 days)	SDP	Þorsteinn Pálsson
								Steingrímur Hermannsson II
								Steingrímur Hermannsson III
								Davíð Oddsson I
19			Guðmundur Árni Stefánsson (1955–)	24 June 1994	12 November 1994	4 months, 19 days (141 days)	SDP	Davíð Oddsson I
20			Rannveig Guðmundsdóttir (1940–)	12 November 1994	23 April 1995	5 months, 11 days (162 days)	SDP
21			Páll Bragi Pétursson (1937–)	23 April 1995	23 May 2003	8 years, 1 month (2,952 days)	PP	Davíð Oddsson II
								Davíð Oddsson III
22			Árni Magnússon (1965–)	23 May 2003	7 March 2006	2 years, 9 months, 12 days (1,019 days)	PP	Davíð Oddsson IV
								Halldór Ásgrímsson
23			Jón Halldór Kristjánsson (1942–)	7 March 2006	15 June 2006	3 months, 8 days (100 days)	PP	Halldór Ásgrímsson
24			Magnús Stefánsson (1960–)	15 June 2006	24 May 2007	11 months, 9 days (343 days)	PP	Geir Haarde I
(18)			Jóhanna Sigurðardóttir (1942–)	24 May 2007	—	—	SDA	Geir Haarde II

Nº	Minister			Took office	Left office	Duration	Party	Cabinet
(18)			Jóhanna Sigurðardóttir (1942–)	—	1 February 2009	1 year, 8 months, 8 days (619 days)	SDA	Geir Haarde II
25			Ásta Ragnheiður Jóhannesdóttir (1949–)	1 February 2009	10 May 2009	3 months, 9 days (98 days)	SDA	Jóhanna Sigurðardóttir I
26			Árni Páll Árnason (1966–)	10 May 2009	2 September 2010	1 year, 3 months, 23 days (480 days)	SDA	Jóhanna Sigurðardóttir II
27			Guðbjartur Hannesson (1950–)	2 September 2010	31 December 2010	3 months, 29 days (120 days)	SDA