Alexei Sidorov, sometimes transliterated as Aleksei Sidorov, (August 22, 1968 – October 9, 2003), a Russian journalist and editor-in-chief for the Tolyatinskoye Obozreniye (Togliatti Review) in Tolyatti, Samara Oblast, Russia, was known for his investigations into the Russian mafia.
Alexei was killed in what was suspected to be an organized crime contract killing.