LHHS may refer to any of the following high schools:
Lyman Hall High School, located in Wallingford, Connecticut Laguna Hills High School, located in Laguna Hills, California La Habra High School, located in La Habra, California Lake Highlands High School, located in Dallas, Texas Lake Howell High School, located in Winter Park, Florida Leo Hayes High School, located in Fredericton, New Brunswick Lake Havasu High School, located in Lake Havasu, Arizona Licking Heights High School, located in Pataskala, Ohio Liberty Hill High School, located in Liberty Hill, Texas Lake Hamilton High School, located in Pearcy, Arkansas