Patrick Angel Valenzuela (born October 17, 1962 in Montrose, Colorado) is an American thoroughbred horse racing jockey. Born into a racing family, his father plus three of his uncles, including Ismael Valenzuela, were jockeys. He rode his first career winner on November 10, 1978, at Sunland Park Racetrack in Sunland Park, New Mexico. In 1980, 17-year-old Pat Valenzuela became the youngest jockey to ever win the Santa Anita Derby.