The Museum De Cruquius (or Cruquiusmuseum) occupies the old Cruquius steam pumping station in Cruquius, the Netherlands. It derives its name from Nicolaas Kruik (1678–1754), a Dutch land-surveyor and one of many promotors of a plan to pump the Haarlemmermeer (Haarlem lake) dry. Like many well-educated men of his time, he latinized his name to Nicolaus Samuel Cruquius.