George Duffield MBE (born 30 November 1946) is an English retired flat racing jockey. He served a seven-year apprenticeship with , and rode his first winner on 15 June 1967 at Great Yarmouth Racecourse on a horse called Syllable, trained by Waugh. He became stable jockey for trainer in 1970, but this was not to be a successful partnership, and they split in 1972. After riding freelance for a bit, he was to become first jockey to trainer Sir Mark Prescott in 1974, a partnership which was to prove most enduring and fruitful. He was awarded the MBE in 2003 for his services to British Horse Racing.