| Acronym | Definition |
|---|
| ATNS➣Agreements, Treaties and Negotiated Settlements (Australia) |
| ATNS➣Air Traffic Navigation Services (South Africa) |
| ATNS➣Automated Telephone Notification System (various locations) |
| ATNS➣Air Traffic and Navigation Services Company Limited (South Africa) |
| ATNS➣Air Traffic Noise Screening (software; US FAA) |
| ATNS➣Annual Training Needs Survey |
| ATNS➣Attitude Toward Nutrition Scale (health education) |