Stefan Schostok (born 12 May 1964) is a German politician of the Social Democratic Party and has been Mayor of Hanover since 6 October 2013.
From 2008 to January 2013 he served as a member of the Lower Saxony Legislative Assembly.
During that time, he was elected chairman of the SPD group in the Lower Saxony Legislative Assembly (Landtag) in 2010, a position which he vacated in 2013.