HECA
| Acronym | Definition |
|---|---|
| HECA | Healthy Environments for Children Alliance (World Health Organization) |
| HECA | Higher Education Consultants Association (est. 1997) |
| HECA | Higher Education Cooperation Act (Illinois) |
| HECA | Home Energy Conservation Association (now Carbon Action Network; UK) |
| HECA | Higher Education Copying Accord (UK) |
| HECA | Horn, East and Central Africa |
| HECA | Hyperbaric Environmental Control Assembly |
| HECA | Harpoon Environmental Correction Aid |