Willem Cornelisz. Duyster (1599-1635) was a Dutch Golden Age painter from Amsterdam.
According to the RKD, his name was taken from his house on the Amsterdam Koningstraat, which was called "De Duystere Werelt", the dim world. He was a pupil of Pieter Codde. He married the sister of the painter Simon Kick (1603-1652), who himself married Willem's sister. Joseph Blackburn English-born American Rococo Era Painter, ca.1700-1780
