| NDBA | National Dental Board of Anesthesiology 
| Others |
| NDBA | National Drag Boat Association
| Others |
| NDBA | Newcastle District Bowling Association
| Others |
| NDBA | Niagara District Baseball Association
| Others |
| NDBA | Niagara District Bridge Association
| Others |
| NDBA | Niall D Brennan Associates
| Others |
| NDBA | Non-Destructive Bit Arbitration
| Others |
| NDBA | North Dakota Bankers Association
| Others |
| NDBA | North Dakota Bowhunters Association
| Others |
| NDBA | North Dakota Broadcasters Association
| Others |
| NDBA | North Dakota Buffalo Association
| Others |
| NDBA | North Dallas Bar Association
| Others |
| NDBA | North Dalls Bar Association
| Others |
| NDBA | North Davidson Business Association
| Others |
| NDBA | North Dearborn Business Association
| Others |
| NDBA | North Delta Baseball Association
| Others |
| NDBA | Northern District Baptist Association
| Others |
| NDBA | Nouveau Dictionnaire de Biographie Alsacienne
| Others |