| Abbreviation | Definition |
|---|---|
| HRDF | Human Resource Development Foundation |
| HRDF | Human Rights Democracy Fund |
| HRDP | Human Rights Development and Protection |
| HREA | Harrison Rural Electrification Association |
| HRED | Human Rights Education Department |
| HRIC | Human Rights in China |
| HRSS | House Rabbit Society Singapore |
| HRW | Human Rights Watch |
| HRWC | Huron River Watershed Council |
| HSA | Haiku Society of America |
| HSA | Hunt Saboteurs Association |
| HSCA | Human Service Charities of America |
| HSEA | Health Systems Engineering Association |
| HSFI | Hispanic Scholarship Fund Institute |
| HSFM | Humane Society of Flower Mound |
| HSHE | Hawaii Society for Healthcare Engineering |
| HSMA | Haitian Society for Mutual Aid |
| HSNI | Humane Society of North Iowa |
| HSOC | Henry Shaw Ozark Corridor |
| HSOC | Humane Society of Ocean City |