Simon John Curtis (born 15 May 1956) is a farrier, author, lecturer and horse hoof-care expert with a PhD in Equine Physiology and Biomechanics (2017). He is a 4th generation farrier; his family have been farriers and blacksmiths in the Newmarket area for at least 150 years. In over 45 years working as a farrier, he has lectured and demonstrated in more than 30 countries including the USA, Australia, India, Russia, and Brazil.