Segeberg – Stormarn-Mitte is an electoral constituency (German: Wahlkreis) represented in the Bundestag. It elects one member via first-past-the-post voting. Under the current constituency numbering system, it is designated as constituency 8. It is located in south central Schleswig-Holstein, comprising most of the Segeberg district and northwestern parts of the Stormarn district. Segeberg – Stormarn-Mitte was created for the 1976 federal election. Since 2021, it has been represented by Bengt Bergt of the Social Democratic Party (SPD).