| Acronym | Definition |
|---|
| ACNS | Anglican Communion News Service |
| ACNS | Applied Cryptography and Network Security |
| ACNS | Application and Content Networking System (Cisco) |
| ACNS | American Conference on Neutron Scattering |
| ACNS | Adult Clinical Nurse Specialist |
| ACNS | Application and Content Networking System |
| ACNS | Automatic Crash Notification System |
| ACNS | Assistant Chief of Naval Staff (Australia and UK) |
| ACNS | Academic Computing and Networking Services |
| ACNS | American Clinical Neurophysiology Society |
| ACNS | AIDS Coalition of Nova Scotia (Canada) |
| ACNS | Automated Copyright Notice System |
| ACNS | Advisory Committee on Nuclear Safety |
| ACNS | Aircraft Carrier Navigation System |