| Abbreviation | Definition |
|---|---|
| HSG | High School Geometry |
| HSGE | High School Graduation Exam |
| HSGT | High School Game Time |
| HSHA | Harbin School of Healing Arts |
| HSHE | High School Health Education |
| HSHP | High School for Health Professions |
| HSHS | Hamilton Southeastern High School |
| HSHS | Helensvale State High School |
| HSHS | Henry-Senachwine High School |
| HSHS | Highland Springs High School |
| HSHS | Hinsdale South High School |
| HSHS | Holly Springs High School |
| HSHS | Holy Spirit High School |
| HSHS | Hot Springs High School |
| HSI | Harmony School Of Innovation |
| HSI | High School Institute |
| HSIC | High School Innovation Challenge |
| HSIS | Hot Springs Intermediate School |
| HSLC | High School Leaving Certificate |
| HSLDA | Home School Legal Defense Association |