Lazar Solomonovich Polyakov (Russian: Ла́зарь Соломо́нович Поляко́в, born 1843 in Dubroŭna – died 1914) was a Russian-Jewish entrepreneur. Polyakov founded his first bank in 1872 and by the 1890s owned an influential financial group; he was informally named "Rothschild of Moscow". His business collapsed in the early 1900s and was completely disbanded by 1909.