| Acronym | Definition |
|---|
| HECS | Higher Education Contribution Scheme (UK) |
| HECS | Honda Emission Catalytic System |
| HECS | Healthy Environments and Consumer Safety (Canada) |
| HECS | Household Energy Consumption Survey |
| HECS | Human Energy Concealment System (hunting garment) |
| HECS | heavy equipment claims support |
| HECS | Heritage Education and Communication Service (India) |
| HECS | Hospital Ethical Climate Survey |
| HECS | History-Economics Computing Support (Rutgers University) |
| HECS | Historic East Coast Storm |
| HECS | Hall Effect Current Sensor (voltage difference sensor) |
| HECS | High-Efficiency Coupling Structure |
| HECS | high edge-connectivity subgraph (problem) |
| HECS | Harsh Environment Combat Suit (Reploid Wars) |
| HECS | High Efficiency Combustion System |
| HECS | Hospital Equipment Control System (Emergency Care Research Institute) |