Cornelis Elout was a Haarlem regent, collector, one of the first members of Teylers Tweede Genootschap and regent of the Armekinderhuis. Cornelis was the son of Jacob Elout and his wife Eva Cornelis dochter Akersloot Steyn. Cornelis Elout was the father of Cornelis Pieter Elout, who was council member and "hoofdschout" of Haarlem and Heer van Schoten.