| Socialist United Party of Russia | |
| Native Name: | Социалистическая единая партия России |
| Native Name Lang: | ru |
| Abbreviation: | SEPR (English) СЕПР (Russian) |
| Colorcode: |
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| Leader: | Vasily Shestakov Yelena Mukhina |
| Founders: | Alexey Podberezkin Ivan Rybkin |
| Predecessor: | Spiritual Heritage Socialist Party of Russia Union of Realists |
| Merged: | A Just Russia |
| Ideology: | Socialism Patriotism Christian left |
| Position: | Centre-left to left-wing |
| Headquarters: | Moscow, Russia |
| Membership: | 65,000 |
| Membership Year: | 2007 |
| Colours: | Blue Red |
| Slogan: | "Choose social justice!" (Russian: "Выбирай социальную справедливость!") |
| Website: | http://www.sepr.ru/ |
| Country: | Russia |
The Socialist United Party of Russia (USPR or SEPR; Russian: Социалистическая единая партия России; СЕПР; Sotsialisticheskaya yedinaya partiya Rossii, SEPR) was a socialist political party in Russia established in 2003, that succeeded the Spiritual Heritage movement. In the 2003 legislative elections it was part of the Rodina coalition that won 9.2 percent of the vote and 37 of the 450 seats in the Duma. In 2007 the party merged into Just Russia.[1]