HMHS

HMHS may refer to:
 * Humana Military Healthcare Services, an American military health care provider
 * Her or His Majesty's Hospital Ship, a ship prefix; see List of hospitals and hospital ships of the Royal Navy

Schools

 * Haddonfield Memorial High School, Camden County, New Jersey, United States
 * Haiphong Maritime High School, Haiphong, Vietnam
 * Hanson Memorial High School, Franklin, Louisiana, United States
 * Harvey Milk High School, New York City, United States
 * Hercules Middle/High School, Hercules, California, United States