Socialist International logo
Countries in which SI member parties were the government or part of a coalition government as of August 2014
|Predecessor||Labour and Socialist International|
|Purpose||Strengthen relations between the affiliated parties and to coordinate their political attitudes and activities.|
|Headquarters||Maritime House, Old Town, Clapham|
|Congress of the Socialist International|
|GBP 1.4 million (2014)|
The Socialist International (SI) is a worldwide association of political parties most of which seek to establish democratic socialism. It consists mostly of democratic socialist, social-democratic and labour political parties and other organisations.
Although formed in 1951 as a successor to the Labour and Socialist International it has antecedents to the late nineteenth century. Initially dominated by parties from Western Europe, it has grown to include more than 160 member parties from more than 100 countries. Its members have governed in many countries including most of Europe. The Party of European Socialists (PES), a major European political party, is an associated organisation of the SI.