| APOP | Advanced Purchase Order Processing | 高级采购订单处理 |
| APOP | Authentication Post Office Protocol | 身份验证邮局协议 |
| APOP | Associate Provost For Outreach Programs | 外联项目副教务长 |
| APOP | Automatic Particle Orientation Procedure | 自动粒子定向程序 |
| APOP | Annual Piece Of Paper | 年度论文 |
| APOP | Approved Paint On Parts | 批准的零件喷漆 |
| APOP | Authentication Post Office Protocol (Qualcomm) | 认证邮局协议（高通公司） |
| APOP | Alternate Point of Presence (telecommunications) | 备用存在点（电信） |
| APOP | Automated Program Operating Plan | 自动化程序操作计划 |
| APOP | Advanced Product Quality Planning | 高级产品质量规划 |