Pacifist Socialist Party

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Pacifist Socialist Party Pacifistisch Socialistische Partij
Abbreviation	PSP
Leader	Nico van der Veen (1957–1960) Henk Lankhorst (1960–1969) Hans Wiebenga (1969–1972) Bram van der Lek (1972–1978) Fred van der Spek (1978–1985) Andrée van Es (1985–1991)
Founded	27 January 1957 (1957-01-27)
Dissolved	1 July 1991 (1991-07-01)
Merged into	GroenLinks[1]
Headquarters	Bloemgracht 55, Amsterdam (1960–1968) Kerkstraat 445 (1968–1979) Nieuwe Looierstraat 45 (1979–1991)
Ideology	Democratic socialism Eco-socialism Pacifism
Political position	Left-wing
European Parliament group	Grael
Colours	Red (official)   Pink (customary)
Politics of Netherlands Political parties Elections

The Pacifist Socialist Party (Dutch: Pacifistisch Socialistische Partij, PSP) was a democratic socialist Dutch political party. The PSP played a small role in Dutch politics. It is one of the predecessors of GroenLinks.