2025 Novosibirsk Oblast legislative election
12–14 September 2025
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All 76 seats in the Legislative Assembly 39 seats needed for a majority | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Turnout | 33.02% 4.77 pp | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The 2025 Legislative Assembly of Novosibirsk Oblast election took place on 12–14 September 2025. All 76 seats in the Legislative Assembly were up for re-election.
United Russia increased its already overwhelming majority in the Legislative Assembly, winning 51.9% of the vote and 29 of 38 single-mandate constituencies. Communist Party of the Russian Federation lost almost a third of its vote share and four seats but retained the second largest faction with 10 deputies. Liberal Democratic Party of Russia also lost 4 pp. and two of its six deputies after its entire faction defected to United Russia. New People and A Just Russia – For Truth both made gains in the Legislative Assembly, increasing its factions by one and two deputies respectively.