| COO | Chief Operating Officer | 首席营运总监 |
| COO | Cell Of Origin | 源小区 |
| COO | Cost Of Ownership | 拥有成本 |
| COO | Country Of Origin | 原產國 |
| COO | Cotonou, Benin - Cotonou (Airport Code) | 贝宁科托努-科托努（机场代码） |
| COO | Chief Operating Officer (corporate title) | 首席运营官（公司职务） |
| COO | Conspiracy of One (Offspring song) | 一个人的阴谋（后代歌曲） |
| COO | Cave of Ordeal (video games) | 奥迪亚洞穴（电子游戏） |
| COO | Cell of Origin (mobile telephony) | 源小区（移动电话） |
| COO | Chief Operations Officer | 首席运营官 |
| COO | Countries of Operation | 运营国家\/地区 |
| COO | Continuity of Operations | 运营的连续性 |
| COO | Combined Obstacles Overlay | 联合障碍物透明图 |
| COO | Constraint and Object Oriented | 约束和面向对象 |
| COO | Cotonou, Benin | 贝宁科托努 |
| COO | Consideration of Others | 对其他人的考虑 |
| COO | Chief Operatiing Officer | 首席运营官 |
| COO | Children of Opportunity | 机会之子 |
| COO | Cookie file | Cookie文件 |
| COO | Chief Of Overt Operations | 外部运营主管 |
| COO | confirmation of ownership | 所有权确认书 |
| COO | Conduct of Operations | 操作的进行 |
| COO | Centro Oftamologico de Occidente | 西方医学中心 |
| COO | Cooper Companies, Inc. | 库珀公司。 |