| APCO | Air Pollution Control Office | 空气污染控制处[美] |
| APCO | Association of Public Safety communication Officials | 公共安全通讯协会 |
| APCO | Association of Public Safety Communications Officials | 公共安全通信官员协会 |
| APCO | Association Of Police Communications Officers | 警察通信官员协会 |
| APCO | Air Pollution Coalition of Ontario (Canada) | 安大略省空气污染联盟（加拿大） |
| APCO | Appomattox Court House National Historic Park (US National Park Service) | Appomatox Court House国家历史公园（美国国家公园管理局） |
| APCO | Architectural Products Company (Columbus, OH) | 建筑产品公司（俄亥俄州哥伦布） |
| APCO | Associated Police Communications Officers | 相关警察通信官员 |
| APCO | Associated Public Safety Communications Officers, Inc. (Daytona Beach, Florida) | 联合公共安全通信官员公司（佛罗里达州代顿海滩） |
| APCO | Arterial Pressure Cardiac Output | 动脉压心输出量 |
| APCO | Appalachian Power Company (Columbus, OH) | 阿巴拉契亚电力公司（俄亥俄州哥伦布） |
| APCO | Air Pollution Control Officer | 空气污染管制主任 |
| APCO | Associated Public-Safety Communications Officers | 相关公共安全通信官员 |
| APCO | Administrative Professional Company Orientation | 行政专业公司定位 |
| APCO | Aperture Close Out | 光圈关闭 |
| APCO | Andres Pirazzoli y Cia, Ltda (Chile) | Andres Piazzoli y Cia有限公司（智利） |