Roger Winks Gray (April 21, 1921 – September 5, 1996) was an economist and academic from the United States.
In October 1942, he was inducted into the United States Army Reserve at Camp Grant, Illinois as a private.
Gray's early research concerned the potato market, analyzing the then evident decline in consumption of potatoes, the changing regional pattern of production, and the role of government policy in causing these changes.
Gray was a consultant for such policy and regulatory bodies as the Chicago Board of Trade, the Food and Agriculture Organization of the United Nations and the Commodity Futures Trading Commission, as well as an expert witness in a number of famous manipulation and tax cases.
Gray wrote more than 50 professional articles related to commodity futures markets.