Edward S. Marcus High School is one of five main high schools in the Lewisville Independent School District, in the U.S. state of Texas. The school opened in 1981 and was the second high school in the district. It services students who live in northern Flower Mound, Highland Village, Double Oak, Lewisville, and Copper Canyon. Marcus' mascot is the Marauder whose imagery mimics the Texas Tech Masked Rider.