| Acronym | Definition |
|---|
| ACIO➣Association Canadienne des Infirmieres en Oncologie (French: Canadian Association of Nurses in Oncology) |
| ACIO➣Australian Commerce and Industry Office |
| ACIO➣Advanced Contact Intelligence Organization |
| ACIO➣Associate Chief Information Officer (corporate title) |
| ACIO➣Army Careers Information Office |
| ACIO➣Advertising Career Information Office |
| ACIO➣Alien Contact Intelligence Organisation |
| ACIO➣Aviation Certification and Interoperability Office |
| ACIO➣Air Combat Intelligence Office |
| ACIO➣Activity Chief Information Officer |
| ACIO➣Aeronautical Chart and Information Office |
| ACIO➣Assistant Central Intelligence Officer |