| Abbreviation | Definition |
|---|---|
| ABNA | Aditya Birla New Age |
| ABNA | Alamitos Beach Neighborhood Association |
| ABNA | Alpine Business Networking Association |
| ABNA | Amazon Breakthough Novel Award |
| ABNA | Amazon Breakthrough Novel Awards |
| ABNA | American Bulldog National Alliance |
| ABNA | Anorexia Bulimia Nervosa Association |
| ABNA | Association of British Naive Artists |
| ABNA | Association of the Balkan News Agencies |
| ABNB | Andy Burnett Narrowboats Brokrge |
| ABNE | Anthon B Nilsen Eiendom |
| ABNER | A Biomedical Named Entity Recognizer |
| ABNF | Augmented Backus–Naur Form |
| ABNL | Audible But Non Lethal |
| ABNM | American Board of No Marketability |
| ABNM | Assembl??e de la Bonne Nouvelle a Montreal |
| ABNM | Assemblée de la Bonne Nouvelle a Montreal |
| ABNORMAL | Abnormality |
| ABNORMALITY | Abnormalities |
| ABNR | Adopted Basis Newton Raphson |