| S/NO | Abbr. | Meaning |
| 1 | AASL | American Association of School Librarians (American Library Association) |
| 2 | AASL | American Association of School Libraries |
| 3 | AASL | Anti-Aircraft Searchlight (Australia) |
| 4 | AASL | Association of Architecture School Librarians |
| 5 | AASL | Athletic Association of Sri Lanka (est. 1922) |
| 6 | AASL | AGES Aircraft Sales and Leasing (AGES Group; Boca Raton, FL) |
| 7 | AASL | Arkansas Association of School Librarians |
| 8 | AASL | Aerospace and Autonomous Systems Laboratory |