| Acronym | Definition |
|---|
| HHHS➣Hunters Hill High School (New South Wales, Australia) |
| HHHS➣Hanover Horton High School (Horton, MI) |
| HHHS➣Hatboro-Horsham High School (Horsham, PA) |
| HHHS➣Herbert Hoover High School |
| HHHS➣Hendrick Hudson High School (Montrose, NY) |
| HHHS➣Hasbrouck Heights High School (New Jersey) |
| HHHS➣Haddon Heights High School (New Jersey) |
| HHHS➣Homer Hanna High School (Brownsville, TX) |