NTAB
| Acronym | Definition |
|---|---|
| NTAB | Niagara Training and Adjustment Board (Canada) |
| NTAB | Northwest Training and Adjustment Board (Dryden, Ontario, Canada) |
| NTAB | National Trust Association in Belgium (est. 1977) |
| NTAB | National Tire and Battery |
| NTAB | Neutralization Antibody |