| NABA | Namibian Biotechnology Alliance 
| Others |
| NABA | National Adult Baseball Association
| Others |
| NABA | National Algae Biomass Association
| Others |
| NABA | National Alliance for Breastfeeding Advocacy
| Others |
| NABA | National Archery Buyers Association
| Others |
| NABA | National Association Breweriana Advertising
| Others |
| NABA | National Association of Black Accountants
| Others |
| NABA | National Association of Buyer's Agents
| Others |
| NABA | National Association of Buyers Agents
| Others |
| NABA | National Automobile Bankers Associates
| Others |
| NABA | National Available Bachelor Association
| Others |
| NABA | Native American Bar Association
| Others |
| NABA | Native American Business Alliance
| Others |
| NABA | Naval Amphibious Base Annex
| Others |
| NABA | Nebraska Auto Body Association
| Others |
| NABA | Nevada Association for Behavior Analysis
| Others |
| NABA | North America Britain and Australia
| Others |
| NABA | North American Bass Anglers
| Others |
| NABA | North American Beer Awards
| Others |
| NABA | North American Boxing Association
| Others |
| NABA | North American Brewers
| Others |
| NABA | North American Brewers Association
| Others |
| NABA | North American Bridal Association
| Others |
| NABA | North American Broadcasters Association
| Others |
| NABA | North American Bullriding Association
| Others |
| NABA | North American Butterfly Association
| Others |
| NABA | Northeastern Association of the Blind at Albany
| Others |
| NABA | Northern Arizona Building Association
| Others |
| NABA | Northland Area Builders Association
| Others |
| NABA | Northside Alcoholics Benevolent Association
| Others |