ATNA
| Acronym | Definition |
|---|---|
| ATNA | Audit Trail and Node Authentication (security profile) |
| ATNA | Australasian Trained Nurses' Association (est. 1899) |
| ATNA | All Talk No Action |
| ATNA | Amateur Television of North America |
| ATNA | Annual Training Needs Assessment |
| ATNA | Auto Trim of North America (distributors network) |