Horatio A. Luro (February 27, 1901 - December 16, 1991) was a thoroughbred horse racing trainer in the United States.Born in Argentina into a wealthy family that had been involved with horses for several generations, Horatio Luro grew up as something of a playboy and maintained this lifestyle after moving to the United States. Well connected, he was friends with the social and business elite who could afford to be involved in the costly sport of thoroughbred racing.