Johann Ernst Gotzkowsky (21 November 1710 – 9 August 1775) was a Prussian merchant with a successful trade in trinkets, silk, taft, porcelain, grain and bills of exchange. Moreover, he acted as a diplomat and important art dealer. His paintings formed the basis and the beginning of the collection in the Hermitage Museum. Gotzkowsky died impoverished with leaving of an autobiography: Geschichte eines patriotischen Kaufmanns (1768), with a French translation and three reprints in the 18th century.