| AAAL | american academy of arts and letters |
|---|---|
| AACO | AIDS Activities Coordinating Office |
| AACO | Amaryllis Avakian Clinica Oftalmologica |
| AACO | American Association of Certified Orthoptists |
| AACO | Arizona Association of Counties (skr.) |
| AACO | Asian Americans for Community Outreach |
| AACO | Assault Airlift Control Officer |
| AALL | nórsky politik a pamfletista (Jacob, 1773-1844) |
| AAMU | ráno, po fínsky |
| AANS | Afroasian News Service (skr.) |