Michael Ludwig (born 3 April 1961) is an Austrian politician of the Social Democratic Party (SPÖ). Since May 2018, he has been Mayor and Governor of Vienna, the capital and largest city of Austria. Since January 2018, he has also served as chairman of SPÖ Vienna. Prior, he was City Councillor for Housing, Construction, and Urban Renewal from January 2007 until his election as mayor. He was also Second Deputy Mayor and Governor of Vienna from March 2009 to October 2010.