Ifield Water Mill is a 19th-century weatherboarded watermill in the Ifield neighbourhood of Crawley, a town and borough in West Sussex, England. Built on the site of an earlier, smaller flour mill, which itself replaced an iron forge—one of many in the Crawley area—it fell into disuse in the 1930s. The local council, which acquired the land for housing development in the 1970s, leased the mill to local enthusiasts, who restored it to working order.