Sergei Yushenkov (Russian: Серге́й Никола́евич Юшенко́в; 27 June 1950 – 17 April 2003) was a liberal Russian politician known for his campaigning for democracy, rapid free market economic reforms, and higher human rights standards in Russia. He was assassinated on 17 April 2003, just hours after registering his political party to participate in the December 2003 parliamentary elections.
Yushenkov was an elected member of all Russian Parliaments from 1989 to 2003. During the Soviet coup attempt of 1991, he organized the "living chain" of civilians who came to protect their Parliament in Moscow, and he successfully negotiated with military personnel sent to storm the building.
As a person with a military background, Yushenkov was the strongest proponent of reform in the Russian Army, and he campaigned tirelessly to abolish conscription, reduce the size of the Army, and protect all rights of military personnel who suffered from abuse and dedovshchina. Yushenkov was a prominent critic of the First and Second Chechen Wars. He argued that Russian Army operates in Chechnya (a part of Russia) illegally.
His political party, Liberal Russia, was officially formed on October 22, 2002. The other initial organizers of this party before its registration were Vladimir Golovlev, Victor Pokhmelkin, and controversial businessman Boris Berezovsky. Vladimir Golovlev was assassinated on 21 August 2002 (his killers were never found), and Boris Berezovsky was expelled, presumably on the request of State authorities who refused to register the party, and possibly due to tensions between the initial organizers of the party.