Matlock Rose, born Berry Matlock Rose (1924–2008), was a professional horse trainer for over 60 years. He established a reputation as an all-around cowboy and trainer of champions. Rose was often described as stonefaced, a man of few words, but long held the respect of his peers. He was referred to as a trainers' trainer, and considered a legend. He trained multiple AQHA world champions, five NCHA world champions, was inducted into the American Quarter Horse Hall of Fame in 2001, as well as both the NCHA Rider Hall of Fame and the NCHA Members Hall of Fame. The first famous cutting horse he trained was Jesse James and many other great horses followed but he was best known for training Peppy San and Peponita.