Lazaro Sosa Barrera (May 8, 1924 – April 25, 1991) was a Cuban-born American Hall of Fame thoroughbred racehorse trainer. Born in Havana, "Laz" Barrera was one of nine brothers who went on to become involved in thoroughbred horse racing in the United States. While in his teens, he began working at a racetrack in his native Cuba and within a few years was one of the country's most respected young trainers. Laz Barrera died in 1991; the Lazaro Barrera Memorial Stakes a Grade II seven furlong race for 3-year-olds at Hollywood Park Racetrack is named in his honor.