Flower Mound High School (FMHS) is part of Lewisville Independent School District and is located in Flower Mound, Texas, United States. The school rests on 52 acres of land that were purchased in 1993. FMHS was the second high school built in Flower Mound, after Edward S. Marcus High School. With the expansion of the town in the 1980s and 1990s, a second high school was built to accommodate the growth.