Sameiningarflokkur alþýðu – Sósíalistaflokkurinn (People's Unity Party – Socialist Party), generally referred to as Sósíalistaflokkurinn (Socialist Party) was an Icelandic political party which functioned from 1938 to 1968, when the Alþýðubandalagið party was created.


It was formed through the merger of the Communist Party of Iceland (KFI) and another splinter-group from the Social Democratic Party on the grounds that a united front was needed against fascism, according to the guidelines put forth by the Comintern. The formation of the Socialist Party was a result of the Popular Front line embraced by ComIntern, and promoted in Iceland by Einar Olgeirsson of the KFI. However, as it resulted in a split within the larger Social Democratic Party, Comintern did no approve of the merger in its eventual form.[1]

The Socialist Party maintained cordial relations with the Communist Party of the Soviet Union. In 1939 the chairmanship was taken over by Einar Olgeirsson, after the previous non-communist chairman had left the party in protest against the Winter War between USSR and Finland.

File:Einar olgeirsson.jpg

Einar Olgeirsson, longtime leader of the Socialist Party of Iceland.

During the Second World War the influence of the party grew. In the 1942 elections it won over its mother organization, the Social Democrats. The Socialist Party clearly supported the formation of the Icelandic Republic in 1944. During the two first years of independence, the Socialist Party took part in a broad coalition government. The coalition broke down on the issue of the claims of the United States to have a military base in Keflavík, which the socialists opposed.

In 1956, the Socialist Party took part in the People's Alliance (Alþýðubandalagið) along with the Egalitarian Society and Hannibal Valdimarsson. When the People's Alliance was made into a formal political party in 1968, the Socialist Party was merged into it and thus became defunct as an independent entity.


  1. Jón Ólafsson, "Komintern gegn klofningi. Viðbrögð Alþjóðasambands kommúnista við stofnun Sósíalistaflokksins", Saga XLV:1 2007, 93-111
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