| Acronym | Definition |
|---|
| HCCS | Houston Community College System |
| HCCS | Health Care Compliance Strategies (Jericho, NY) |
| HCCS | Holmes Chapel Comprehensive School (Cheshire, UK) |
| HCCS | Hills Christian Community School (Australia) |
| HCCS | Horizontal Clamp Connection System (oil exploration) |
| HCCS | Holy Cross Central School (Indiana) |
| HCCS | Helicopter Cargo Letdown Check Spotter |
| HCCS | Holy Child Catholic School (Philippines) |
| HCCS | Health Care Consulting Services (various locations) |
| HCCS | Hellenic Classical Charter School (New York, NY) |
| HCCS | Honey Creek Community School |
| HCCS | High Confidence Computing Systems |
| HCCS | Harmonized Commodity Coding System |