Dancer's Image (April 10, 1965 – December 26, 1992) was an American Thoroughbred racehorse who was the first winner in the history of the Kentucky Derby to be disqualified.

On the Sunday prior to the 1968 Kentucky Derby, his handlers had a veterinarian give him a dose of phenylbutazone, a nonsteroidal anti-inflammatory drug (NSAID) commonly used to relieve inflammation of the joints.

On Saturday, May 4, Dancer's Image won the Kentucky Derby, but was disqualified after traces of phenylbutazone were discovered in the mandatory post-race urinalysis.

The disqualification was announced on Tuesday, May 7, with second-place finisher Forward Pass declared the winner and Dancer's Image moved to last.

[10] Forty years after the disqualification, owner Peter Fuller still believed he was a victim of a set-up, due to his being a wealthy civil rights sympathizer from Boston who offended the Kentucky racing aristocracy by donating Dancer's Image's $62,000 prize for a previous victory to Coretta Scott King two days after her husband's murder.

Fuller said he had anticipated that someone might interfere with his colt and asked Churchill Downs officials to provide extra security before the race, but they denied the request.