Ostholstein – Stormarn-Nord 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 9. It is located in eastern Schleswig-Holstein, comprising the Ostholstein district and northeastern parts of the Stormarn district. Ostholstein – Stormarn-Nord was created for the 1976 federal election. Since 2021, it has been represented by Bettina Hagedorn of the Social Democratic Party (SPD).