| HECS | high edge-connectivity subgraph (problem) | 高边连通子图（问题） |
| HECS | High-Efficiency Coupling Structure | 高效耦合结构 |
| HECS | History-Economics Computing Support (Rutgers University) | 历史经济学计算支持（罗格斯大学） |
| HECS | Historic East Coast Storm | 历史性东海岸风暴 |
| HECS | Household Energy Consumption Survey | 家庭能源消耗调查 |
| HECS | Higher Education Contribution Scheme (UK) | 高等教育缴费计划（英国） |
| HECS | Healthy Environments and Consumer Safety (Canada) | 健康环境与消费者安全（加拿大） |
| HECS | Higher Education Contributory Scheme | 高等教育供款计划 |
| HECS | Heritage Education and Communication Service (India) | 遗产教育和传播服务（印度） |
| HECS | heavy equipment claims support | 重型设备索赔支持 |
| HECS | Harsh Environment Combat Suit (Reploid Wars) | 严酷的环境战斗服（重演战争） |
| HECS | Hospital Ethical Climate Survey | 医院道德风气调查 |
| HECS | High Efficiency Combustion System | 高效燃烧系统 |