Socialist Labour Party (UK, 1903)

Socialist Labour Party
Founded7 June 1903
Dissolved1980
Split fromSDF
NewspaperThe Socialist
Membership1,000 (1919)
IdeologyMarxism–De Leonism
Industrial unionism
Political positionFar-left
The British SLP adopted the familiar "arm and hammer" of its American namesake as its official logo.

The Socialist Labour Party was a socialist political party in the United Kingdom. It was established in 1903 as a splinter from the Social Democratic Federation (SDF) by James Connolly, Neil Maclean and SDF members impressed with the politics of the American socialist Daniel De Leon, a Marxist theoretician and leading figure of the Socialist Labor Party of America. After decades of existence as a tiny organisation, the group was finally disbanded in 1980.