| PPO | Poly(phenylene oxide) deprecated | 聚苯醚 |
| PPO | Project Planning and Oversight | 项目计划与监督 |
| PPO | Professional Photographers of Ohio | 俄亥俄州专业摄影师 |
| PPO | Public Policy Office | 公共政策办公室 |
| PPO | Partnership Project Office | 合作项目办公室 |
| PPO | Pilot/Payload Operator | 飞行员/载荷操作员 |
| PPO | Professional Photographers of Oklahoma | 俄克拉荷马州专业摄影师 |
| PPO | Preferred Provider Organization | 首选提供商组织 |
| PPO | Programmable Pulse Output | 可编程脉冲输出 |
| PPO | Polyphenylene Oxide | 聚苯醚 |
| PPO | Prior Permission Only | 仅限事先许可 |
| PPO | Polypropylene Oxide | 聚丙烯氧化物 |
| PPO | Pupil Personnel Office (schools) | 学生人事办公室（学校） |
| PPO | Professional Photographers of Oregon | 俄勒冈州专业摄影师 |
| PPO | Product Process Organization | 产品工艺组织 |
| PPO | Prolific & Other Priority Offenders (UK) | 高产及其他优先权违法者(英国) |
| PPO | Pollution Prevention Officer (Canada) | 污染预防官员（加拿大） |
| PPO | Please Piss Off | 请撒尿 |
| PPO | Principal Period of Operation | 主要运营期 |
| PPO | Parole and Probation Officer | 假释和缓刑官 |
| PPO | Personal Protection Order | 个人保护令 |
| PPO | Powell Point, Bahamas | 巴哈马鲍威尔角 |
| PPO | Pupil Performance Objective | 学生成绩目标 |
| PPO | Pure Plant Oil | 纯植物油 |
| PPO | Public Price Offering | 公开价格发行 |
| PPO | polyphenoloxidase | 多酚氧化酶 |
| PPO | platelet peroxidase | 血小板过氧化物酶 |
| PPO | Percentage Price Oscillator | 百分比价格振荡器 |
| PPO | PolyPhenolic Oxidase | 聚酚氧化酶 |
| PPO | peak pepsin output | 胃蛋白酶峰值产量 |
| PPO | pleurpneumonia organisms | 胸膜肺炎生物 |
| PPO | Power Purchase Organization | 电力采购组织 |
| PPO | Personal Post Office | 个人邮局 |
| PPO | PreProcessor output file | PreProcessor输出文件 |
| PPO | Prolific Priority Offender | 高级优先犯 |
| PPO | Project Portfolio Office | 项目组合办公室 |
| PPO | People Protecting Otters | 人们保护水獭 |
| PPO | Proposal Production Office | 提案制作办公室 |
| PPO | Physical Plant Office | 物理工厂办公室 |
| PPO | Personal Performance Objective | 个人绩效目标 |
| PPO | Project Purchasing Officer | 项目采购官 |
| PPO | Probationary Police Officer (NYPD) | 见习警官（纽约警察局） |
| PPO | Probation and Parole Officer | 缓刑和假释官 |
| PPO | Please Pass On | 请继续 |
| PPO | Postal Police Officer | 邮政警察 |
| PPO | Program Planning Objectives | 项目规划目标 |
| PPO | Permanently Pissed Off | 永久性撒尿 |
| PPO | Personal Protection Order (law) | 个人保护令（法律） |
| PPO | Plant PowerOps (software) | 电厂PowerOps（软件） |
| PPO | Peninsula Pops Orchestra (San Francisco, CA) | 半岛流行乐团（加利福尼亚州旧金山） |
| PPO | Projected Program Objective | 计划项目目标 |
| PPO | Post Production Option (manufacturing add-on) | 后期生产选项（制造附加组件） |
| PPO | Personal Property Office (US Navy) | 个人财产办公室（美国海军） |
| PPO | Pre-Production Operations | 预生产操作 |
| PPO | Professional Photographers of Ontario | 安大略省专业摄影师 |
| PPO | Preliminary Protective Order | 初步保护令 |
| PPO | Public Purchasing Offer | 公开采购报价 |