Sergei Vladilenovich Kiriyenko (b. July 26, 1962) served as the Prime Minister of Russia from 23 March to 23 August 1998. Boris Yeltsin appointed him. He was acting Prime Minister until the Duma confirmed him on 24 April.

Rosatom
He was appointed to head Rosatom, the Federal Atomic Energy Agency, on 30 November, 2005. He is also chairman of the board of directors of the vertically integrated Atomenergoprom nuclear company.

He said on 18 September, 2006 while in Vienna, that the reactor in the Bushehr nuclear plant in Iran should be operational by September 2007 and the plant itself will be active in November 2007. He advocated President Vladimir Putin's idea of creating an international system of uranium enrichment centers. A uranium enrichment center could be operational in Russia in 2007. Responding to a reporter's question, Kiriyenko said that the Bushehr power plant would not affect nuclear non-proliferation and that there was nothing preventing Iran-Russia energy cooperation. The Government of Russia plans to deliver nuclear fuel to the plant in March 2007.

Descent
Sergei Kiriyenko comes from a typical Soviet family. His grandfather, Yakov Israitel, made his name as a devoted Communist, who for his good service to the party received an inscribed pistol from Vladimir Lenin. In the 1930s, Yakov Israitel served as the head of the KGB border guard on Russia's southern frontier.

Sergei Kiriyenko was born in 1962 in Sukhum, the capital of Abkhazia, and grew up in Sochi, in southern Russia. After graduation from high school, Kiriyenko enrolled in the shipbuilding faculty at the Nizhny Novgorod (Gorky) Water Transport Engineers Institute, where his divorced father taught. At this time, he dropped the Jewish family name of his father and adopted Kiriyenko, the Ukrainian name of his mother.