The Party for the Open Society (Czech: Strana pro otevřenou společnost, SOS) is a minor social liberal political party in the Czech Republic.

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (September 2014) You can help expand this article with text translated from the corresponding article in Czech. (September 2014) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Czech Wikipedia article at [[:cs:Strana pro otevřenou společnost]]; see its history for attribution. You should also add the template {{Translated|cs|Strana pro otevřenou společnost}} to the talk page. For more guidance, see Wikipedia:Translation. This article does not cite any sources. (March 2017)

Quick Facts Leader, Founded ...

Party for the Open Society Strana pro otevřenou společnost
Leader	Pavel Rytíř
Founded	1998
Split from	Czech National Social Party
Ideology	Liberalism Social liberalism National liberalism Environmentalism
Political position	Centre to centre-left
European affiliation	European Democratic Party (former member)
Website
www.stranaos.cz
Politics of Czech Republic Political parties Elections

Close

The party origins were in the Civic Movement (Czech: Občanské Hnutí), a liberal group founded in 1991 within Civic Forum. In 1993 the party was renamed the Free Democrats (Czech: Svobodní Demokraté). After poor results in local elections in 1994, the party merged with the Liberal National Social Party (LSNS) to become the Free Democrats-Liberal National Social Party (Czech: Svobodní Demokraté - Liberální strana národně sociální). The merged party again returned poor results in parliamentary elections in 1996, and amid political disagreements over the nationalist views of ex-members of the LSNS, many Free Democrats left the party in 1997, forming the Party for the Open Society in 1998, with 120-150 members.

The party's political programme places highest importance on sustainable development. At the 2006 parliamentary elections, several SOS members were candidates on Green Party lists, but none were elected. In 2006 the SOS had local organisations in four of 13 regions in the Czech Republic, and in Prague. SOS did not stand any candidates in the 2010 parliamentary elections, instead urging its supporters once again to support the Green Party.

SOS also supports the Club of Committed Non-Party Members and other liberal parties. The independent senator Soňa Paukrtová was nominated for re-election by SOS, and was re-elected on 28 October 2006.

• Liberalism in the Czech lands

• Party website (in Czech)
• Details about cooperation with Greens (in Czech)