Stevie Wonderboy (foaled 2003 in Kentucky) is a retired Thoroughbred race horse.
Stevie Wonderboy is the son of Stephen Got Even out of the mare Heat Lightning, a daughter of the Storm Bird colt, Summer Squall.
His breeding line includes such notable horses as Secretariat, Seattle Slew, Bold Ruler and Northern Dancer.
Competing in 2005, his performances that year, capped off by a win in the fall's Breeders' Cup Juvenile, earned him the Eclipse Award for Outstanding 2-Year-Old Male Horse.
However, on February 7, 2006, it was announced that Stevie Wonderboy had suffered a hairline fracture in his ankle.