By-elections to the 7th Russian State Duma

By-elections to the 7th Russian State Duma are held to fill vacancies in the State Duma between the 2016 election and the 2021 election.
According to article 97 of the Federal Law "On elections of deputies of the State Duma", by-elections are appointed on the second Sunday of September (single voting day), but not less than 85 days before the day of voting. This means that if a vacant seat occurs before a single voting day, but less than 85 days before it, the election will be scheduled for next year. Also, by-elections are not appointed and are not held if, as a result of these elections, a Deputy cannot be elected for a term of more than one year before the end of the constitutional term for which the State Duma was elected.
The first by-elections were held on 10 September 2017, in two constituencies. The last by-elections were held on 13 September 2020, in four constituencies.
10 September 2017.
Kingisepp.
The seat from the Kingisepp constituency became vacant after the resignation of the Deputy Sergey Naryshkin, 5 October 2016. Naryshkin resigned in order to take up the post of head of Russia's Foreign Intelligence Service.
Bryansk.
The seat from the Bryansk constituency became vacant after the resignation of the Deputy Vladimir Zhutenkov, 10 June 2017.
9 September 2018.
Saratov.
On 17 June 2017, Deputy Oleg Grishchenko, who was elected from the Saratov constituency, died. A by-election will be held after the 2017 single voting day on 10 September 2017. A by-election must be scheduled for any Sunday within a year of the date the seat is officially vacated, and must be announced no later than 85 days before the next single day of voting.
Zavolzhsky.
On 3 October 2017, Vladimir Vasilyev, who was elected from the Zavolzhsky constituency was appointed Acting Head of Dagestan.
Balashov.
On 6 October 2017, Mikhail Isayev, who was elected from the Balashov constituency was elected Mayor of Saratov.
Nizhny Novgorod.
On 17 January 2018, Vladimir Panov, who was elected from the Nizhny Novgorod constituency was elected Mayor of Nizhny Novgorod.
Central (Kaliningrad Oblast).
On 18 April 2018, Alexey Silanov, who was elected from the Central constituency of Kaliningrad Oblast was elected Mayor of Kaliningrad.
Amur.
On 14 June 2018, Ivan Abramov, who was elected from the Amur constituency resigned, due to selection to the Federation Council.
Samara.
On 14 June 2018, Nadezhda Kolesnikova, who was elected from the Samara constituency resigned because she was moving to another job.
8 September 2019.
Novgorod.
On 11 August 2018, Alexander Korovnikov who was elected from the Novgorod constituency, died. Since the Deputy died a month before the single voting day, and to organize a by-election in this constituency on 9 September 2018 is too late, according to the law, the by-election will be held in 2019 single voting day (8 September 2019).
Komsomolsk.
On 23 September 2018, Sergey Furgal who was elected from the Komsomolsk constituency, was elected Governor of Khabarovsk Krai.
Serov.
On 12 December 2018, Sergey Bidonko who was elected from the Serov constituency, was appointed the Vice Governor of Sverdlovsk Oblast.
Oryol.
On 5 April 2019, Nikolay Kovalyov who was elected from the Oryol constituency, died.
13 September 2020.
Seimsky.
On 20 June 2019, Viktor Karamyshev, who was elected from the Seimsky constituency was elected Mayor of Kursk. Since Karamyshev resigned only on 9 July, it was no longer possible to appoint by-election for a 2019 single voting day, because of this, the by-election will be held in 2020.
Lermontovsky.
On 22 January 2020, Leonid Levin, who was elected from the Lermontovsky constituency was appointed Deputy Chief of Staff of the Government.
Yaroslavl.
On 23 January 2020, Alexander Gribov, who was elected from the Yaroslavl constituency was appointed Deputy Chief of Staff of the Government.
Nizhnekamsky.
On 7 February 2020, Airat Khairullin, who was elected from the Nizhnekamsky constituency died in a helicopter crash.