| PMO | Plant Manager Office | 厂长室 |
| PMO | Program Management Office | 计划管理办公室 |
| PMO | Project Management Office | 项目管理办公室 |
| PMO | postal money order | 邮政汇票 |
| PMO | Palermo, Sicily, Italy - Punta Raisi (Airport Code) | 意大利西西里岛巴勒莫-蓬塔莱西（机场代码） |
| PMO | Plant Maintenance Order | 工厂维护订单 |
| PMO | PUTNAM Municipal Opportunities Trust | PUTNAM市政机会信托 |
| PMO | Prime Minister's Office | 总理办公室 |
| PMO | Provost Marshal Office | 教务长办公室 |
| PMO | Polaris Material Officer | 北极星材料专员 |
| PMO | Policy Management Object | 策略管理对象 |
| PMO | Polymethylene Oxide | 聚环氧乙烷 |
| PMO | Purdue Musical Organization | 普渡音乐组织 |
| PMO | Palermo, Italy | 意大利巴勒莫 |
| PMO | Push Me Out | 将我推出 |
| PMO | Passing Muscat Outbound | 通过马斯喀特出境 |
| PMO | Project Management Office/r | 项目管理办公室/ r |
| PMO | Packing Many Ovules | 包裹许多卵 |
| PMO | Present Method of Operation | 当前操作方法 |
| PMO | Priority Management Objective | 优先级管理目标 |
| PMO | Program Management Organization | 项目管理组织 |
| PMO | Pasteurized Milk Ordinance (USA Milk Industry) | 巴氏杀菌牛奶条例（美国牛奶工业） |
| PMO | Preventive Medicine Officer | 预防医学主任 |
| PMO | Project Management Operations | 项目管理运营 |
| PMO | Premium Member Only | 仅限高级会员 |
| PMO | Program Management Office/r | 项目管理办公室/ r |
| PMO | Portfolio Management Officer | 投资组合管理官 |
| PMO | production management office(r) (US DoD) | 生产管理办公室（美国国防部） |
| PMO | Palomar Mountain Observatory (also seen as PMOb) | 帕洛马山天文台（也称PMOb） |
| PMO | Performance Management Office | 绩效管理办公室 |
| PMO | Postmenopausal Osteoporosis | 绝经后骨质疏松症 |
| PMO | Preventive Maintenance Optimization | 预防性维护优化 |
| PMO | Personnel Management Officer (US DoD) | 人事管理官（美国国防部） |
| PMO | Premier Oil Plc (stock symbol) | Premier Oil Plc（股票代码） |
| PMO | Program Manager's Office | 项目经理的办公室 |
| PMO | Provost Marshal's Office | 教务长元帅的办公室 |
| PMO | Product Managers Office | 产品经理办公室 |