OSNA
| Acronym | Definition |
|---|---|
| OSNA | Open Service Network Architecture |
| OSNA | Ornithological Societies of North America |
| OSNA | Orthopedic Surgeons Network of Arizona (Phoenix, AZ) |
| OSNA | One-Step Nuclear Amplification |
| OSNA | Oregon Student Nurses Association |
| OSNA | Oregon School Nutrition Association |
| OSNA | Open Source Network Analysis |