The 2009 Thuringian state election was held on 30 August 2009 to elect the members of the 5th Landtag of Thuringia. It was held on the same day as the 2009 Saarland state election and the 2009 Saxony state election. The incumbent Christian Democratic Union (CDU) government led by Minister-President Dieter Althaus was defeated. The CDU subsequently formed a grand coalition with the Social Democratic Party (SPD). Althaus resigned after the election due to his party's poor performance, which was far below expectations. He was succeeded by fellow CDU member Christine Lieberknecht, who was elected as the new Minister-President.^[1]

Quick Facts All 88 seats of the Landtag of Thuringia, Registered ...

2009 Thuringia state election

← 2004 30 August 2009 2014 →
All 88 seats of the Landtag of Thuringia
Registered	1,910,074 2.5%
Turnout	1,054,297 (56.2%) 2.4%
First party Second party Third party   Leader Dieter Althaus Bodo Ramelow Christoph Matschie Party CDU Left SPD Leader's seat Eichsfeld I Erfurt III (won seat) Jena I (won seat) Last election 45 seats, 43.0% 28 seats, 26.1%[lower-alpha 1] 15 seats, 14.5% Seats won 30 27 18 Seat change 15 1 3 Popular vote 329,302 288,915 195,363 Percentage 31.2% 27.4% 18.5% Swing 11.8% 1.3% 4.0%   Fourth party Fifth party   Leader Uwe Barth Astrid Rothe-Beinlich Party FDP Greens Leader's seat List[lower-alpha 2] List[lower-alpha 3] Last election 0 seats, 3.6% 0 seats, 4.5% Seats won 7 6 Seat change 7 6 Popular vote 80,600 64,912 Percentage 7.6% 6.2% Swing 4.0% 1.7%
Results for the single-member constituencies
Minister-President before election Dieter Althaus CDU Elected Minister-President Christine Lieberknecht CDU

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The table below lists parties represented in the 4th Landtag of Thuringia.

Minister-President and CDU leader Dieter Althaus resigned in the wake of the election, stating he took responsibility for his party's losses.^[2] However, observers noted that his resignation also helped clear the way for a grand coalition between the CDU and SPD, which was preferred by both parties, and would be easier to manage under new leadership. The only viable alternative to a grand coalition was a government led by The Left with SPD and Green support, which both the CDU and SPD sought to avoid; the CDU because such a coalition would leave them in opposition, and the SPD because of personal animosity between its leader Christoph Matschie and Left leader Bodo Ramelow.^[2] Ultimately, a grand coalition of the CDU and SPD was formed under the leadership of the CDU's Christine Lieberknecht, who was elected Minister-President.

A.^ Compared to results for PDS