NBSA
| Acronym | Definition |
|---|---|
| NBSA | Nurses Board of South Australia |
| NBSA | Native Bovine Serum Albumin |
| NBSA | Network Business System Architecture (Sprint) |
| NBSA | Nickel-Based Superalloy (metallurgy) |
| NBSA | Netherlands Bank of South Africa (now Nedbank, Ltd.; South Africa) |
| NBSA | New Brunswick Student Association (Canada) |