Leendert Pieter de Neufville (Amsterdam, March 8, 1729 – Rotterdam, July 28, 1811) was a Dutch merchant and banker trading in silk, linen, grain. His business grew quickly during the Seven Years' War. De Neufville secretly supplied the Prussian army with gunpowder. It is likely that the army's outsourcing of handling bills of exchange in commercial payment boosted his business in a sophisticated form of letters of credit, acceptance loans. His business model had similarities with the modern shadow banking system.