Time Supply (foaled 1931) was an American Thoroughbred racehorse sired by Time Maker out of the Fair Play mare Surplice. He was bred in Virginia at the Court Manor Stud of Willis Sharpe Kilmer in conjunction with Edward B. McLean. Kilmer had successfully run Sun Briar, Exterminator and Sun Beau which allowed him to expand his New York operations to Virginia. McLean was the publisher of the Washington Post and other newspapers through inheritance and had purchased the Hope Diamond in 1911.