| ABN | A Annual Business Number 
| Others |
| ABN | A Big Nutcase
| Others |
| ABN | A**holes by Nature
| Others |
| ABN | ablation nephropathy
| Others |
| ABN | Academia Brasileira de Neurologia
| Others |
| ABN | Accounting Bodies Network
| Others |
| ABN | Acronym Builders Network
| Others |
| ABN | Acute Bacterial Nephritis
| Others |
| ABN | Additive Bayesian Networks
| Others |
| ABN | Advance Beneficiary Notice
| Others |
| ABN | Advanced Beneficiary Notice
| Others |
| ABN | Advanced Beneficiary Notification
| Others |
| ABN | African Business Network
| Others |
| ABN | After the Battle of Nockmaar
| Others |
| ABN | Alabama Board of Nursing
| Others |
| ABN | Alabama Northern Railway (Ashland Railway)
| Others |
| ABN | Alameda Business Network
| Others |
| ABN | Algemeen Beskaafd Nederlanz
| Others |
| ABN | Algemene Bank Nederland
| Others |
| ABN | Alliance for Better Nonprofits
| Others |
| ABN | Alternative Business Name
| Others |
| ABN | Aluminum Brass Nickel
| Others |
| ABN | American Baseball Network
| Others |
| ABN | American business number
| Others |
| ABN | amoda Broadcasting Network
| Others |
| ABN | Aramaic Broadcasting Network
| Others |
| ABN | Armenian Business Network
| Others |
| ABN | Artist By Nature
| Others |
| ABN | Aseptic Bone Necrosis
| Others |
| ABN | Asia Business News
| Others |
| ABN | Association of British Neurologists
| Others |
| ABN | Australian Business Name
| Others |
| ABN | Australian Business Number
| Others |
| ABN | Australian Business Numbers
| Others |
| ABN | Auto Business News
| Others |
| ABN | Auto Buyers Network
| Others |
| ABN | Automotive Brand Network
| Others |
| ABN | Automotive Broadcast Network
| Others |
| ABN | Automotive Broadcasting Network
| Others |
| ABN | Brazilian Academy of Neurology
| Others |