Christian Social Union in Bavaria

Christian Social Union in Bavaria
Christlich-Soziale Union in Bayern
AbbreviationCSU
LeaderMarkus Söder
Secretary GeneralMartin Huber
Founded13 October 1945 (1945-10-13)
Preceded byBavarian People's Party
(de facto)
HeadquartersMunich, Bavaria, Germany
NewspaperBayernkurier (1950–2019)
Youth wingYoung Union
Women's wingWomen's Union of the CSU
Pensioners' wingPensioners' Union of the CSU
Workers' wingEmployees' Union
Membership (2024) 131,000
Ideology
Political positionCentre-right
National affiliationCDU/CSU (since 1949)
Regional affiliationGerman Social Union
(1990–1993)
European affiliationEuropean People's Party
European Parliament groupEuropean People's Party Group
International affiliationInternational Democracy Union
Colours  Blue
Bundestag
Bavarian seats
44 / 630
Bundesrat
Bavarian seats
4 / 69
Landtag of Bavaria
85 / 205
European Parliament
6 / 96
Heads of State Governments
1 / 16
Party flag
Website
csu.de

The Christian Social Union in Bavaria (German: Christlich-Soziale Union in Bayern, CSU) is a Christian democratic and conservative political party in Germany. Having a regionalist identity, the CSU operates only in Bavaria while its larger counterpart, the Christian Democratic Union (CDU), operates in the other fifteen states of Germany. It differs from the CDU by being somewhat more conservative in social matters, following Catholic social teaching. The CSU is considered the de facto successor of the Weimar-era Catholic Bavarian People's Party.

At the federal level, the CSU forms a common faction in the Bundestag with the CDU which is frequently referred to as the Union Faction (die Unionsfraktion) or simply CDU/CSU. The CSU has had 43 seats in the Bundestag since the 2021 federal election, making it currently the second smallest of the eight parties represented. The CSU is a member of the European People's Party and the International Democracy Union.

Party leader Markus Söder serves as Minister-President of Bavaria, a position that CSU representatives have held from 1946 to 1954 and again since 1957. From 1962 to 2008 and from 2013 to 2018, the CSU had the absolute majority in the Bavarian Landtag.