ATCI
| Acronym | Definition |
|---|---|
| ATCI | Antenna Technology Communications, Inc. (Chandler, AZ) |
| ATCI | Association of Thai Computer Industry (Thailand) |
| ATCI | Albany Transcomm International |
| ATCI | Air Traffic Control Instruction |
| ATCI | Advanced Technology Consulting, Inc. (Greenwood Village, CO) |
| ATCI | Acute Transitory Coronary Insufficiency (heart function) |