| Abbreviation | Definition |
|---|---|
| AG | Annus Gatesis |
| AH | Anno Hegirae |
| AHRQ | Agency for Health Research and Quality |
| AILLA | Archive of Indigenous Languages of Latin America |
| ALABC | Arab Latin America Business Council |
| ALABC | Australia Latin America Business Council |
| ALABC | Australian Latin America Business Council |
| ALAF | Anglo Latin American Foundation |
| ALAF | Aureos Latin America Fund |
| ALAJE | Afro Latin American Jazz Ensemble |
| ALAS | Association of Latin American Students |
| ALAS | Association of Latino Administrators and Superintendents |
| ALIRA | ACTFL Latin Interpretive Reading Assessment |
| ALK | Almighty Latin Kings |
| ALKQN | Almighty Latin King and Queen Nation |
| ALVB | Ars Longa, Vita Brevis |
| AM | Anno Mundi |
| AM | Ante Meridiem |
| AM | Artium Magister |
| AMDG | Ad Majorem Dei Gloriam |