The authors multiply estimates of crop water requirements by the amounts of crop and livestock products traded internationally to obtain estimates of “virtual water flows” between countries. The results largely reflect the underlying trade statistics. Major food exporting countries such as Argentina, Australia, Brazil, Canada, Thailand, and the United States are considered to be large exporters of virtual water, while major food importing countries such as China, Egypt, Japan, Russia, South Korea, and the United Kingdom are considered to be large importers of virtual water. There is nothing inherently good or bad about importing or exporting virtual water.