GMHS

GMHS may refer to:
 * Glyceryl monohydroxystearate

Schools

 * Garner Magnet High School, Garner, North Carolina, United States
 * General McLane High School, Edinboro, Pennsylvania, United States
 * George Mason High School, Falls Church, Virginia, United States
 * Granby Memorial High School, Granby, Connecticut, United States
 * Great Mills High School, Great Mills, Maryland, United States
 * Green Mountain High School, Lakewood, Colorado, United States
 * Groveport Madison High School, Groveport, Ohio, United States
 * Guam High School, Agana Heights, Guam, United States