Karol Jaroszyński, Karol Lucjan Jan Jaroszyński, Карл Иосифович Ярошински, Charles Jaroszynski (December 13, 1877 – September 8, 1929) was a Polish mason, Imperial Russian businessman, financier and philanthropist. Friend and benefactor of the family of Tsar Nicholas II of Romanov during her retreat in Siberia.