| PMAC | Purchasing Management Association of Canada | 加拿大采购管理协会 |
| PMAC | Purchasing Management Association of Chicago | 芝加哥采购管理协会 |
| PMAC | Pharmaceutical Manufacturers Association of Canada | 加拿大药品制造商协会 |
| PMAC | Packaging Mills Association Of Canada | 加拿大包装厂协会 |
| PMAC | Purchasing Management Association Of Cleveland | 克利夫兰采购管理协会 |
| PMAC | Performance Measurement and Control | 性能测量和控制 |
| PMAC | Pest Management Advisory Committee | 害虫管理咨询委员会 |
| PMAC | Proposed Material Acquisition Change | 提议的材料采购变更 |
| PMAC | Performance Measurement Advisory Committee | 绩效衡量咨询委员会 |
| PMAC | Performance Modeling and Characterization | 性能建模和表征 |
| PMAC | Personnel Management Action Committee | 人事管理行动委员会 |
| PMAC | Permanent-Magnet Alternating Current (electric motor) | 永磁交流（电机） |
| PMAC | Precision Multi-Axis Controller (robotics) | 精密多轴控制器（机器人） |
| PMAC | Plant and Microbe Adaptations to Cold | 植物和微生物对寒冷的适应 |
| PMAC | Password Modification Access Code (SEC) | 密码修改访问码（SEC） |
| PMAC | polymethoxy acetal | 聚乙氧基缩醛 |
| PMAC | Packet Media Access Controller | 分组媒体访问控制器 |
| PMAC | phenylercuric acetate | 乙酸苯汞 |
| PMAC | Professional Masters in Accounting | 会计专业硕士 |
| PMAC | Performance Management Advisory Committee | 绩效管理咨询委员会 |