George Seabo (July 2, 1911 - February 26, 1991) was an American jockey and trainer of Thoroughbred racehorses best known as a founding member of the Jockeys' Guild^[1] who rode future U.S. Racing Hall of Fame inductee Challedon to victory in the 1939 Preakness Stakes, the second leg of the U.S. Triple Crown series.^[2]

Born in Croton-on-Hudson, New York, George Seabo grew up in Hastings-on-Hudson, New York. He married Mildred Ryan of Roxbury, New York who gave up her job as Branch Manager of a cooperative bank to be a housewife. In a May 28, 1942 interview with The Hastings News she recounted how her husband could ride at 105 pounds and was a rarity among jockeys in that he never had to diet.^[3]

The 1959 American Champion Two-Year-Old Filly My Dear Girl was initially trained by Melvin Calvert's assistant George Seabo but after the filly won the 1959 Florida Breeders' Stakes, Calvert took charge.^[4]