| Acronym | Definition |
|---|
| PCAS | Pinellas County Animal Services (Florida) |
| PCAS | Pacific Coast Analytical Services (Sylmar, CA) |
| PCAS | Portable Collision Avoidance System (aviation) |
| PCAS | Protected Carotid Artery Stenting (cardiology) |
| PCAS | Perifolliculitis Capitis Abscedens et Suffodiens (scalp disease) |
| PCAS | Primary Crash Alarm System |
| PCAS | Policy Co-ordination and Advisory Services |
| PCAS | Post Construction Award Services (military construction contracts) |
| PCAS | Polytechnics Central Admissions System (UK) |
| PCAS | Patient-Controlled Analgesia System |
| PCAS | Person Centred Active Support |
| PCAS | Positive Cardholder Authorization Service |
| PCAS | Posterior Cerebral Artery Stroke |
| PCAS | Personnel Community Automation Services |
| PCAS | Persistent Chemical Agent Simulant |
| PCAS | Primary Central Alarm Station |
| PCAS | Plutonium Canister Assay System |
| PCAS | Personnel Cost Accountability System |
| PCAS | Peel Career Assessment Services, Inc (Mississauga, Ontario, Canada) |
| PCAS | Production Cost Accounting System (Prime ProData, Inc.) |
| PCAS | Prioritized Channel Assignment Scheme |
| PCAS | Pocklington Canal Amenity Society |
| PCAS | Primary Care Assessment Service (UK) |
| PCAS | Patient Care Automation Services (Oakville, Ontario) |