| Abbreviation | Definition |
|---|---|
| HCN | The Historical Climatology Network |
| HCOC | History Center of Olmsted County |
| HCSSA | Historical and Cultural Studies Student Association |
| HCSSA | Historical and Cultural Studies Students Association |
| HDA | History of Decorative Arts |
| HDAS | Historical Dictionary of American Slang |
| HDG | Historically Disadvantaged Group |
| HEARTH | Home Economics Archive Research Tradition and History |
| HECE | History of East Central Europe |
| HEIRS | History of European Integration Research Society |
| HELD | History of Expressive Language Delay |
| HEMME | History Evaluation Modalities Manipulation And Exercise |
| HESS | History Of Earth Sciences Society |
| HET | Historical Enquiries Team |
| HET | History of Economic Thought |
| HGA | History Graduate Association |
| HGIS | Historical Geographic Information System |
| HGSA | History Graduate Students Association |
| HGSA | History Graduate Students' Association |
| HGSS | History Government and Social Studies |