2017 Lower Saxony state election

2017 Lower Saxony state election

← 2013 15 October 2017 2022 →
All 137 seats in the Landtag of Lower Saxony 69 seats needed for a majority
Turnout	3,828,003 (63.1%) 3.7%
First party Second party Third party   Leader Stephan Weil Bernd Althusmann Anja Piel Party SPD CDU Greens Last election 49 seats, 32.6% 54 seats, 36.0% 20 seats, 13.7% Seats won 55 50 12 Seat change 6 4 8 Popular vote 1,413,990 1,287,191 334,130 Percentage 36.9% 33.6% 8.7% Swing 4.3% 2.4% 5.0%   Fourth party Fifth party   Leader Stefan Birkner Dana Guth Party FDP AfD Last election 14 seats, 9.9% Did not exist Seats won 11 9 Seat change 3 9 Popular vote 287,957 235,863 Percentage 7.5% 6.2% Swing 2.4% Did not exist
Results for the single-member constituencies
Government before election First Weil cabinet SPD–Green Government after election Second Weil cabinet SPD–CDU

The 2017 Lower Saxony state election was held on 15 October 2017 to elect the 18th Landtag of Lower Saxony. The incumbent coalition government of the Social Democratic Party (SPD) and The Greens led by Minister-President Stephan Weil was defeated. Though the SPD became the largest party in the Landtag largely fueled by the personal popularity of Weil, their gains were offset by losses for the Greens, depriving the government of its majority. The SPD subsequently formed a grand coalition with the Christian Democratic Union (CDU), and Weil continued as Minister-President.

This was the last election, state or federal, in which the SPD gained seats or increased their share of the popular vote until the 2021 German federal election and 2021 Mecklenburg-Vorpommern state election which both took place on the same day in September 2021.