By-elections to the 4th State Duma of the Russian Federation were held to fill vacant seats in the State Duma between the 2003 election and the 2007 election.
| Constituency | Date | Former MP | Party | Cause | Winner | Party | Retained | ||
|---|---|---|---|---|---|---|---|---|---|
| Verkh-Isetsky No.162, Sverdlovsk Oblast |
14 March 2004 | None | None | Nobody received enough votes in the general election | Yevgeny Zyablitsev [ru] | Independent | Yes | ||
| Ulyanovsk No.181, Ulyanovsk Oblast |
14 March 2004 | None | None | Nobody received enough votes in the general election | Vacant. By-election declared invalid due to against all line receiving most votes. | No | |||
| Eastern No.207, Saint Petersburg |
14 March 2004 | None | None | Nobody received enough votes in the general election | Aleksandr Morozov | Independent | No | ||
| Borzya No.187, Chita Oblast |
24 October 2004 | Yury Lossky [ru] | Independent | Death | Yevgeny Blokhin [ru] | Independent | Yes | ||
| Ulyanovsk No.181, Ulyanovsk Oblast |
5 December 2004 | None | None | Nobody received enough votes in the previous by-election | Yury Kogan [ru] | Liberal Democratic Party | No | ||
| Preobrazhensky No.199, Moscow |
5 December 2004 | Aleksandr Zhukov | United Russia | New post | Vacant. By-election declared invalid due to low turnout. | No | |||
| Belaya Kalitva No.142, Rostov Oblast |
19 December 2004 | Vladimir Averchenko [ru] | People's Party | New post | Fyodor Shvalev [ru] | United Russia | No | ||
| Bryansk No.66, Bryansk Oblast |
24 April 2005 | Nikolay Denin | United Russia | New post | Vacant. By-election declared invalid due to low turnout. | No | |||
| Kamensk-Shakhtinsky No.144, Rostov Oblast |
9 October 2005 | Vladimir Litvinov [ru] | United Russia | Death | Vadim Varshavsky [ru] | Independent | No | ||
| Preobrazhensky No.199, Moscow |
4 December 2005 | None | None | Nobody received enough votes in the previous by-election | Sergey Shavrin [ru] | United Russia | Yes | ||
| Universitetsky No.201, Moscow |
4 December 2005 | Mikhail Zadornov | Yabloko | New post | Stanislav Govorukhin | United Russia | No | ||
| Kalininsky No.183, Chelyabinsk Oblast |
25 December 2005 | Mikhail Yurevich | People's Party | New post | Dmitry Yeryomin [ru] | United Russia | No | ||
| Bryansk No.66, Bryansk Oblast |
12 March 2006 | None | None | Nobody received enough votes in the previous by-election | Viktor Malashenko [ru] | United Russia | Yes | ||
| Medvedkovo No.196, Moscow |
12 March 2006 | Georgy Boos | United Russia | New post | Leonid Govorov | United Russia | Yes | ||
| Sakhalin No.160, Sakhalin Oblast |
8 October 2006 | Ivan Zhdakayev [ru] | Communist Party | Death | Svetlana Ivanova | Communist Party | Yes | ||
| Ust-Orda Buryat No.220, Ust-Orda Buryat Autonomous Okrug |
8 October 2006 | Valery Kuzin [ru] | Independent | Death | Valery Maleyev [ru] | United Russia | No | ||
External links
 By-elections to the Russian State Duma | |
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| See also: Russian elections |