Unbridled's Song (foaled 1993 in Kentucky) is an American thoroughbred stallion racehorse. He was sired by 1990 Kentucky Derby winner Unbridled out of the Caro mare, Trolley Song.
As a two year old, Unbridled's Song may be most noted for his near record time in the 1995 Breeders' Cup Juvenile. Trained by James T. Ryerson and ridden by Mike E. Smith, it was only his third time on the racetrack as he battled Hennessy down the stretch for a time of 1:41:60.
The next spring, after placing second in the Peter Pan Stakes and the Fountain of Youth Stakes, he beat the 1996 U.S. Champion 3-Yr-Old Colt Skip Away, along with Louis Quatorze and Editor's Note in the Florida Derby.
Then, a couple of weeks before the Kentucky Derby, he won the Wood Memorial, but in doing so, he hit himself in the left forefoot, causing a "quarter crack", or cracked hoof, requiring a special bar shoe and acrylic patch.
He was the favorite for the 1996 Kentucky Derby but placed a troubled fifth behind Grindstone. The forefoot injury from the Wood Memorial kept him out of the rest of the Triple Crown races.
Lightly raced at four, he won the Olympic Handicap.