Sergei Ilyich Shemetov (Russian: ?????? ????? ???????; 18 September 1872, Orenburg Governorate — after 1930, Kurgan Oblast) was a scribe, a teacher, a head of a village (stanytsia otaman), a deputy of the Third Imperial Duma from Orenburg Governorate between 1907 and 1912.
He founded a hotel ("paid dacha") in 1912, initiating the spa practice in the Trans-Urals region.
He became a member of the "commission for the capture of the Bolsheviks" during the Russian Civil War; during Soviet era he became a lishenets, an insurance agent and a seller.