| PACA | Pakistan American Cultural Association | 巴基斯坦-美国文化协会 |
| PACA | Pacific and Asian Communication Association | 太平洋和亚洲传播协会 |
| PACA | Pennsylvania Aggregates and Concrete Association | 宾夕法尼亚州骨料和混凝土协会 |
| PACA | Programa Ambiental para CentroamÉrica | Programa Ambiental para CentroamÉrica |
| PACA | People Against Car Accidents | 人们反对车祸 |
| PACA | Preliminary Assessment and Corrective Action | 初步评估和纠正措施 |
| PACA | Participatory Analysis for Community Action | 社区行动的参与性分析 |
| PACA | Physics and Chemistry of the Atmosphere | 大气物理和化学 |
| PACA | Product Assurance Checkout Area | 产品保证检验区域 |
| PACA | People as A Competitive Advantage | 人作为竞争优势 |
| PACA | Provence Alpes Côte d'Azur (France) | Provence Alpes Côte d'Azur (France) |
| PACA | Performing Arts Center Authority | 表演艺术中心管理局 |
| PACA | Perishable Agricultural Commodities Act | 易腐农业商品法 |
| PACA | Picture Agency Council of America | 美国图片社理事会 |
| PACA | Priority Access and Channel Assignment | 优先接入和信道分配 |
| PACA | Propulsion and Control Assembly | 推进和控制组件 |
| PACA | Phased Array Communications Antenna | 相控阵通信天线 |
| PACA | Politica Agropecuaria Comun Andina (Spanish) | Politica Agropecuria Comun Andina（西班牙语） |
| PACA | Pagans Against Child Abuse | 异教徒反对虐待儿童 |
| PACA | primary pancreatic adenocarcinoma | 原发性胰腺腺癌 |
| PACA | Panel Acoustic Contribution Analysis (Automated Analysis Corp.) | 面板声学贡献分析（Automated Analysis Corp.） |
| PACA | Procuring Authority Competition Advocate | 采购机构竞争倡导者 |
| PACA | Per Annum Compounded Annually | 每年复合每年 |
| PACA | Play And Creative Activity | 游戏和创意活动 |