Viktor Chernov

Viktor Mikhailovich Chernov (Russian: Виктор Михайлович Чернов; 19 November 1873 – 15 April 1952) was a Russian revolutionary, politician, and theorist who was a principal founder and leader of the Socialist Revolutionary Party (PSR). As the party's chief ideologist, he developed the theory of "constructive socialism", which combined elements of Russian populism and Marxism, advocating for a two-stage revolution leading to an agrarian socialist society.

Born in Saratov Governorate to a minor noble and former serf, Chernov became involved in revolutionary circles in his youth. He was instrumental in uniting disparate populist groups to form the PSR in the early 1900s. Chernov's political thought emphasized an alliance between the urban proletariat and the peasantry, with the former as a vanguard, and critiqued orthodox Marxist interpretations of class by including all "toilers" as part of the revolutionary force. He championed land socialization—the transfer of land to communal control for egalitarian use—as a core tenet of the PSR's program.