HNHS

HNHS may refer to:
 * Havelock North High School, Havelock North, New Zealand
 * Holy Name High School, Parma Heights, Ohio, United States
 * Holy Name High School (Reading, Pennsylvania), United States
 * Holy Names High School (Oakland, California), United States
 * Holy Names High School (Windsor, Ontario), Canada
 * Huntington North High School, Huntington County, Indiana, United States