| 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 |