| Acronym | Definition |
|---|
| AHN | All Headline News (online news service) |
| AHN | Academy of the Holy Names (Albany, NY) |
| AHN | Ad Hoc Network |
| AHN | Archivo Histórico Nacional (Spanish: National Historical Archive) |
| AHN | Athens, GA, USA (Airport Code) |
| AHN | AIDS Housing Network (New York, NY) |
| AHN | Asian Highway Network (transportation project) |
| AHN | Autisme de Haut Niveau (French: High-Functioning Autism) |
| AHN | African Heritage Network (TV station) |
| AHN | Army Health Nurse (US Army) |
| AHN | Assigned House Number (address marker; various locations) |
| AHN | Aetna Hispanic Network |
| AHN | Allied Health Network |
| AHN | Adenomatous Hyperplastic Nodule |
| AHN | Algemeen Hoogtemodel Nederland (Dutch: Netherlands General Elevation Model) |