Pieter Cramer (21 May 1721 (baptized) – 28 September 1776) was a wealthy Dutch merchant in linen and Spanish wool, remembered as an entomologist.
This literary and patriotic society, where Cramer gave lectures on minerals, commissioned and/or financed the publishing of his book De uitlandsche Kapellen, on foreign (exotic) butterflies, occurring in three parts of the world Asia, Africa and America.
[1] Cramer assembled an extensive natural history collection that included seashells, petrifications, fossils and insects of all orders.
Cramer decided to get a permanent record of his collection and so engaged the painter Gerrit Wartenaar to draw his specimens.
The Dutch Nationaal Natuurhistorisch Museum came to own a substantial number of his specimens and bought part of Cramer's collection from Joan Raye, heer van Breukelerwaert.