HCLS
| Acronym | Definition |
|---|---|
| HCLS | Health Care and Life Sciences (Semantic Web Activity) |
| HCLS | High Cost Loop Support (US FCC) |
| HCLS | Helicopter Cargo Letdown Spotter |
| HCLS | Hidalgo County Library System (Texas) |
| HCLS | Heave-Compensated Landing System (oil industry) |
| HCLS | Hobart Community Legal Service (Hobart, Australia) |
| HCLS | Hope and Care for Little Souls (orphan ministry) |