LMHS

LMHS may refer to:
 * Linda Marquez High School, Huntington Park, California, United States
 * La Marque High School, La Marque, Texas (Greater Houston)
 * La Mirada High School, La Mirada, California
 * Lake Marion High School & Technology Center, Santee, South Carolina, United States
 * Lake Mary High School, Lake Mary, Florida, United States
 * Lake Minneola High School, Minneola, Florida, United States
 * Laurier Macdonald High School, Montreal, Quebec, Canada
 * Linden-McKinley High School, Columbus, Ohio, United States
 * Linn-Mar High School, Marion, Iowa, United States
 * Little Miami High School, Morrow, Ohio, United States
 * Lloyd Memorial High School, Erlanger, Kentucky, United States
 * Louisville Male High School, Louisville, Kentucky, United States
 * Lower Merion High School, Ardmore, Pennsylvania, United States
 * Lyman Memorial High School, Lebanon, Connecticut, United States