Ismael "Milo" Valenzuela (December 25, 1934 in McNary, Texas – September 2, 2009 in Arcadia, California) was a Thoroughbred horse racing Hall of Fame jockey. He was one of 22 children born to parents who had immigrated to the United states. Shortly after Ismael Valenzuela's birth, the family returned to their native Mexico. At age 14, Milo Valenzuela came back to the United States where he began working with quarter horses then launched his career as a jockey at a racetrack in Tucson, Arizona.