Granbury High School is a public high school located in the city of Granbury, Texas, USA and classified as a 5A school by the UIL. It is part of the Granbury Independent School District which serves students grades 9-12 from Granbury, Hood County along with portions of Johnson County and Parker County. The school was founded around 1870 at a different location. The present high school was built in the 1970s at its current location. It was the first public school in Hood County.