Donald R. Pierce (born April 13, 1937) is a retired U.S. Racing Hall of Fame jockey in thoroughbred horse racing.Based in California, Pierce earned his first win in 1954 and went on to become a leading jockey in the 1960s and 1970s. In 1967, he was voted the George Woolf Memorial Jockey Award which honors a rider whose career and personal conduct exemplifies the very best example of participants in the sport of thoroughbred racing.