| Abbreviation | Definition |
|---|---|
| ANAP | American Nihilist Anarchist Party |
| ANC | African National Party [South Africa] |
| ANC | Armee Nationale Congolaise |
| ANCWL | African National Congress Womens League |
| ANCYL | African National Congress Youth League |
| ANMD | Associação Novo Macau Democrático |
| ANP | Awami National Party |
| ANPL | Advance Native Political Leadership |
| ANPP | All Nigeria Peoples Party |
| ANPP | All Nigerians People Party |
| ANSP | American National Socialist Party |
| ANSWER | Act Now to Stop War & End Racism |
| ANT | Anti-Nuclear Technology |
| AOAFAFBA | Actions Of A Few Are Felt By All |
| AOL | Another Ousted Leader |
| AON | Age Of Nationalism |
| AOSIS | Alliance Of Small Island States |
| AOTPAC | American Occupational Therapy Political Action Committee |
| AP | Ammoral Politics |
| APAC | Adoptees Political Action Coalition |