| POO | Point of Origin | 原点 |
| POO | Purchase Order Outbound | 采购订单出库 |
| POO | Pursue Other Opportunities | 追求其他机会 |
| POO | Point of Order | 订单点 |
| POO | Program Zero Zero (Apollo program; properly written as P00 using zeros) | 程序归零（阿波罗程序；使用零正确写成P00） |
| POO | Power of One (United States Power Squadrons) | 一号力量（美国力量中队） |
| POO | Priority Operational Objectives | 优先运营目标 |
| POO | Poop | 便池 |
| POO | String pool (INITeX) | 字符串池（INITeX） |
| POO | Party Of One | 一方当事人 |
| POO | Point Of Order Origination | 订单发起点 |
| POO | Positive Opposition Operation | 正面反对操作 |
| POO | Please Occupy Overthere | 请占用这里 |