| Abbreviation | Definition |
|---|---|
| A.B. | Artium Baccalaureaus |
| A.M.T | Master of Arts in Teaching |
| A.Mus.A. | Associate in Music, Australia |
| A2 | Advanced Level 2 (UK educational qualification) |
| AA | Abbreviated Addressing |
| AA | Amplitude Adder |
| AA | Associate in Arts |
| AA | Associate of Arts |
| AAA | Asian Art Appreciation |
| AAAS | African and African American Studies |
| AAB | Associate of Applied Business |
| AABA | Associate of Arts in Business Administration |
| AAD | Antillean Academy Diploma |
| AADIP | Antillean Academy DIPloma |
| AADIP | Architectural Association Diploma |
| AADIP | Architectural Association School of Architecture Diploma |
| AAFPRS | Fellow of the American Academy of Facial Plastic and Reconstructive Surgery |
| AAGS | Associate of Arts in General Studies |
| AAI | Applied Artificial Intelligence |
| AAPALA | American Association of Prior Academic Learning Assessment |