Stanley Franklin Dancer (July 25, 1927 – September 9, 2005) was an American harness racing driver and trainer. He was the only horsemen to drive and train three Triple Crowns in horse racing. In total, he drove 23 Triple Crown winners. He was the first trainer to campaign a horse to $1 million in a career, Cardigan Bay in 1968 and drove the Harness Horse of the Year seven times.