Socialist Party (Netherlands)

Socialist Party

Socialistische Partij
Socialist Party Socialistische Partij
Abbreviation	SP
Leader	Jimmy Dijk (list)
Chairman	Lieke van Rossum
Secretary	Nils Müller
Leader in the Senate	Rik Janssen
Leader in the House of Representatives	Jimmy Dijk
Founder	Daan Monjé
Founded	22 October 1971
Split from	Communist Unity Movement of the Netherlands (Marxist–Leninist)
Headquarters	De Moed Partijbureau SP Snouckaertlaan 70, Amersfoort
Think tank	Scientific Office of the SP
Youth wing	SP Jongeren (2022–present); ROOD (2003–2021)
Membership (2026)	28,380
Ideology	Democratic socialism; Left-wing populism; Cultural conservatism;
Political position	Left-wing
Regional affiliation	Socialists, Greens and Democrats; PSOM (historical)
European affiliation	European Left Alliance for the People and the Planet
European Parliament group	European United Left/Nordic Green Left (1999–2019)
Colours	Crimson
Senate	3 / 75
House of Representatives	3 / 150
States-Provincial	22 / 570
European Parliament	0 / 31
King's Commissioners	1 / 12
Benelux Parliament	1 / 21
Website
	sp.nl; international.sp.nl
	Politics of the Netherlands; Political parties; Elections; ^ A: SP has been variously described as left-wing, "old left", far-left, and left-conservative; the latter label is due its more conservative stances on socio-cultural issues.;

The Socialist Party (Dutch: Socialistische Partij [soːɕaːˈlɪstisə pɑrˈtɛi]; SP [ɛsˈpeː]) is a democratic socialist political party in the Netherlands. Founded in 1971 as the Communist Party of the Netherlands/Marxist–Leninist (KPN/ML, Dutch: Communistische Partij van Nederland/Marxistisch–Leninistisch), the party has since moderated itself from Marxism–Leninism and Maoism towards democratic socialism

Positioned to the political left of the Labour Party, the party has been part of the parliamentary opposition since it was formed. After the 2006 Dutch general election, the SP became one of the major parties of the Netherlands winning 25 out of 150 parliamentary seats, an increase of 16 seats. The SP delegation shrank over the next elections, reaching three seats in 2025.