| Abbreviation | Definition |
|---|---|
| HREF | Health Research and Education Facility |
| HREI | Human Rights Education Institute |
| HREP | Harlem Renaissance Education Pipeline |
| HREP | Health and Rights Education Programme |
| HREP | Human Rights Education Project |
| HRH | Human Resources for Health |
| HRIE | Human Rights In Education |
| HRP | Humanitarian Response Programme |
| HRTE | High Road To Education |
| HS | Head Start |
| HS | High Specification |
| HS | Home Schooled |
| HS | Home Sick |
| HSA | High School Assessment |
| HSA | Home School Association |
| HSAC | Honors Student Advisory Council |
| HSB | High School Building |
| HSBC | High School Business Competition |
| HSC | Higher School Certificate |
| HSDT | High School Drama Teacher |