| HMEC | High-Moisture Ear Corn 
| Others |
| HMEC | Hindu Mandir Executives' Conference
| Others |
| HMEC | Horace Mann Educators Corporation (insurance holding company)
| Others |
| HMEC | Human Dermal Microvascular Endothelial Cell (aka Human Microvascular Dermal Endothelial Cell)
| Others |
| HMEC | Human Mammary Epithelial Cell
| Others |
| HMEC | Hybrid Multi-Level Error Control
| Others |