| Abbreviation | Definition |
|---|---|
| AN | American Native |
| AN | Anime Nation |
| AN | Anime North |
| AN | Anna Nezabava |
| AN | Annon And No |
| AN | Anti Nig |
| AN | Any Number |
| AN | Archive Note |
| AN | Aryan Nation |
| AN | As Needed |
| AN | Asymptotically Normal |
| AN | Attribute Name |
| AN | Attribute Noise |
| AN | Authors Note |
| AN | Authors Notes |
| AN | Author's Notes |
| AN | Autonetics |
| AN | Auxiliary Network |
| ANA | A New Approach |
| ANA | A Nother A |