Mittelholstein ("central Holstein") is an Amt ("collective municipality") in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany. It was formed on 1 January 2012 from the three former Ämter Aukrug, Hanerau-Hademarschen and Hohenwestedt-Land and the municipality Hohenwestedt. The seat of the Amt is in Hohenwestedt.
The Amt Mittelholstein consists of the following municipalities:
