Frank L. Brothers (born October 24, 1946 in New Orleans, Louisiana) is an American Thoroughbred racehorse trainer who in 1991 won two of the three U.S. Triple Crown races. He was voted the Outstanding Thoroughbred Trainer Award from the United Thoroughbred Trainers of America in 1991 and was inducted into the Fair Grounds Racing Hall of Fame.A resident of Louisville, Kentucky, Frank Brothers is married to former jockey and television racing analyst, Donna Barton.