| PCAS | Pocklington Canal Amenity Society | 波克灵顿运河便利设施协会 |
| PCAS | Primary Care Assessment Service (UK) | 初级保健评估服务(英国) |
| PCAS | Persistent Chemical Agent Simulant | 持久性化学试剂模拟物 |
| PCAS | Patient-Controlled Analgesia System | 患者控制的镇痛系统 |
| PCAS | Production Cost Accounting System (Prime ProData, Inc.) | 生产成本会计系统(Prime ProData,Inc.) |
| PCAS | Positive Cardholder Authorization Service | 正面持卡人授权服务 |
| PCAS | Personnel Cost Accountability System | 人员成本责任制 |
| PCAS | Primary Central Alarm Station | 主要中央报警站 |
| PCAS | Portable Collision Avoidance System (aviation) | 便携式防撞系统(航空) |
| PCAS | Post Construction Award Services (military construction contracts) | 建造后奖励服务(军事建造合同) |
| PCAS | Peel Career Assessment Services, Inc (Mississauga, Ontario, Canada) | 皮尔职业评估服务公司(加拿大安大略省米西索加) |
| PCAS | Personnel Community Automation Services | 人员社区自动化服务 |
| PCAS | Plutonium Canister Assay System | 钚罐分析系统 |
| PCAS | Patient Care Automation Services (Oakville, Ontario) | 患者护理自动化服务(安大略省奥克维尔) |
| PCAS | Prioritized Channel Assignment Scheme | 优先信道分配方案 |
| PCAS | Policy Co-ordination and Advisory Services | 政策协调和咨询服务 |
| PCAS | Person Centred Active Support | 以人为中心的主动支持 |
| PCAS | Posterior Cerebral Artery Stroke | 后脑动脉卒中 |
| PCAS | Psychotherapy Competence Assessment SchEdule | 心理治疗能力评估 |