2027 Schleswig-Holstein state election

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The 2027 Schleswig-Holstein state election is scheduled to be held on 18 April 2027 to elect the 21st Landtag, or state parliament, of Schleswig-Holstein in Germany.

The Landtag is elected via mixed-member proportional representation. 35 members are elected in single-member constituencies via first-past-the-post voting. 34 members are then allocated using compensatory proportional representation. Voters have two votes: the "first vote" for candidates in single-member constituencies, and the "second vote" for party lists, which are used to fill the proportional seats. The minimum size of the Landtag is 69 members, but if overhang seats are present, proportional leveling seats will be added to ensure proportionality. An electoral threshold of 5% of valid votes is applied to the Landtag; parties that fall below this threshold, and fail to win at least one constituency, are ineligible to receive seats. Parties representing the Danish minority of Southern Schleswig and the Frisians, such as the South Schleswig Voters' Association, are exempt from the threshold.