Joachim Zeller (born 1 July 1952) is a German politician of the Christian Democratic Union and since 2009 a member of the European Parliament.
Born in Opole, Upper Silesia, Zeller attended the Humboldt University of Berlin. From 1977 to 1992, he was employed at the university library as a research associate. From 1996 to 2006, he served as mayor of the Berlin borough of Mitte.
In April 2012, Zeller was one of 28 EP politicians who voted against a move to restrict the export of spy gear and censorship tools to autocratic regimes.