Smart Deb (foaled 1960) was an American Thoroughbred Champion racehorse. She was bred by Russell L. Reineman and raced under the name of his wife, Marion.Trained by Arnold Winick, in 1962 Smart Deb had an outstanding racing campaign. Unbeaten in seven straight races, she won her eighth but was disqualified and placed last in the September 27, 1962 edition of the Astarita Stakes at Aqueduct Racetrack.