# By-elections to the 3rd Russian State Duma

By-elections to the 3rd State Duma of the Russian Federation were held to fill vacant seats in the State Duma between the 1999 election and the 2003 election.
| Constituency | Date | Former MP | Party | Party | Cause | Winner | Party | Party | Retained |
| Vladivostok No.50, Primorsky Krai | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Viktor Cherepkov | | Independent | Yes |
| Kamchatka No.87, Kamchatka Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Valery Dorogin [ru] | | Independent | Yes |
| Vsevolozhsk No.99, Leningrad Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Aleksandr Nevzorov | | Independent | No |
| Mytishchi No.108, Moscow Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Arkady Baskayev [ru] | | Independent | No |
| Odintsovo No.110, Moscow Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Viktor Alksnis | | Independent | No |
| Verkh-Isetsky No.162, Sverdlovsk Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Yevgeny Zyablitsev [ru] | | Independent | Yes |
| Ordzhonikidzevsky No.165, Sverdlovsk Oblast | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Nikolay Ovchinnikov [ru] | | Independent | Yes |
| North West No.210, Saint Petersburg | 26 March 2000 | None | None | None | Nobody received enough votes in the general election | Konstantin Sevenard [ru] | | Independent | No |
| Chechnya No.31, Chechnya | 20 August 2000 | None | None | None | Elections were not held | Aslambek Aslakhanov | | Independent | Yes |
| Northern No.209, Saint Petersburg | 15 October 2000 | Sergey Stepashin | | Yabloko | New post | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | No |
| Monchegorsk No.115, Murmansk Oblast | 3 December 2000 | Gennady Luzin [ru] | | Independent | Death | Igor Chernyshenko [ru] | | Independent | Yes |
| Karachay-Cherkessia No.15, Karachay-Cherkessia | 10 December 2000 | Boris Berezovsky | | Independent | Resigned | Magomet Tekeyev [ru] | | Independent | Yes |
| Kolomna No.106, Moscow Oblast | 18 March 2001 | German Titov | | Communist Party | Death | Gennady Gudkov | | Independent | No |
| Ingushetia No.12, Ingushetia | 15 April 2001 | Mikhail Gutseriyev | | Independent | New post | Alikhan Amirkhanov [ru] | | Independent | Yes |
| Tikhoretsk No.43, Krasnodar Krai | 20 May 2001 | Aleksandr Tkachyov | | Communist Party | New post | Nikolay Denisov [ru] | | Independent | No |
| Kineshma No.79, Ivanovo Oblast | 27 May 2001 | Vladimir Tikhonov | | Communist Party | New post | Valentina Krutova [ru] | | Independent | No |
| Chukotka No.223, Chukotka Autonomous Okrug | 1 July 2001 | Roman Abramovich | | Independent | New post | Vladimir Yetylin | | Independent | Yes |
| Blagoveshchensk No.58, Amur Oblast | 7 October 2001 | Leonid Korotkov | | Independent | New post | Aleksandr Vinidiktov [ru] | | Independent | Yes |
| Arkhangelsk No.59, Arkhangelsk Oblast | 7 October 2001 | Aleksandr Piskunov [ru] | | Fatherland – All Russia | New post | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | No |
| Tuva No.27, Tuva | 14 October 2001 | Nikolay Loktionov [ru] | | Unity | New post | Chylgychy Ondar | | Independent | No |
| Chertanovo No.204, Moscow | 14 October 2001 | Sergey Shokhin [ru] | | Fatherland – All Russia | New post | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | No |
| Northern No.209, Saint Petersburg | 14 October 2001 | None | None | None | Nobody received enough votes in the previous by-election | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | No |
| Yamalo-Nenets No.225, Yamalo-Nenets Autonomous Okrug | 16 December 2001 | Viktor Chernomyrdin | | Our Home – Russia | New post | Natalya Komarova | | Independent | No |
| Nizhnevartovsk No.221, Khanty-Mansi Autonomous Okrug | 24 March 2002 | Aleksandr Ryazanov | | Independent | New post | Vladimir Aseyev | | Independent | Yes |
| Dzerzhinsk No.119, Nizhny Novgorod Oblast | 31 March 2002 | Gennady Khodyrev | | Independent | New post | Vladimir Basov [ru] | | Independent | Yes |
| Gorno-Altaysk No.2, Altai Republic | 19 May 2002 | Mikhail Lapshin | | Fatherland – All Russia | New post | Sergey Pekpeyev [ru] | | Independent | No |
| Central No.130, Omsk Oblast | 29 September 2002 | Aleksandr Vereteno [ru] | | Independent | Death | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | Vacant. By-election declared invalid due to low turnout. | No |
| Khanty-Mansiysk No.222, Khanty-Mansi Autonomous Okrug | 20 October 2002 | Aleksandr Lotorev [ru] | | Independent | New post | Aleksandr Safonov [ru] | | Independent | Yes |