Oleg Vladimirovich Deripaska (Russian: Оле́г Влади́мирович Дерипа́ска; born 2 January 1968) is a Russian oligarch and industrialist. He is the founder of Basic Element, one of Russia's largest industrial groups, and Volnoe Delo, Russia's largest charitable foundation. Until 2018, he was the president of En+ Group, a Russian energy company, and until 2018 headed United Company Rusal, the second-largest aluminium company in the world.
After graduating from Moscow State University with a degree in physics, Deripaska became a metals broker specialized in trading aluminium before expanding into energy, machinery, financial services and agribusiness. In 2000, Deripaska founded Rusal, the result of a partnership between Sibirsky Aluminium and Roman Abramovich's Millhouse Capital. In 2007, Rusal merged with SUAL Group and Glencore International AG to form UC Rusal, with Deripaska as chairman.