| APOS | Acoustic Processor Operating Station | 声学处理器操作站 |
| APOS | After Point of Sales | 售后服务点 |
| APOS | Advanced Polymer Systems, Inc. | 先进聚合物系统公司。 |
| APOS | Action Process Object Schema | 操作流程对象架构 |
| APOS | A Positive blood type | A血型阳性 |
| APOS | American Psychosocial Oncology Society | 美国心理社会肿瘤学会 |
| APOS | Asia-Pacific Optical Fiber Sensors (conference) | 亚太光纤传感器（会议） |
| APOS | Austrian Positioning System | 奥地利定位系统 |
| APOS | Advanced Process Oriented Steering | 高级面向过程的指导 |