Christlich-Soziale Union in Bayern
Leader	Markus Söder (Minister President of Bavaria)
Headquarters	Franz Josef Strauß-Haus Nymphenburger Str. 64 80335 München
Ideology	Christian democracy Conservatism
Political position	Centre-right
European affiliation	European People's Party
International affiliation	Christian Democrat International and International Democrat Union
European Parliament group	European People's Party - European Democrats
Colours	Blue (campaign colour)
Website
http://www.csu.de

The Christian Social Union of Bavaria or Christlich Soziale Union (short CSU) is a conservative political party in the German state of Bavaria.

In the federal parliament of Germany (Bundestag) the CSU and the CDU join together in a political alliance to form the main centre-right group in Germany.

Its chief is Horst Seehofer. view more...