The Cook Mill is a 19th century water mill located on Kogjespolder, on the south side of the Dieperpoel in the town of Warmond. The mill was built in 1809 to serve the 30 hectare Tuinder and Kogjespolder, a part of the Kagerplassen lakes. The mill was bought by the Old Rijnstromen Waterboard in 1979. The Cook Mill is a relatively small round stone windmill, with a flight of only 14 metres.
