| Abbreviation | Definition |
|---|---|
| AISU | American International School of Utah |
| AISZ | American International School of Zagreb |
| AITS | Artists in the Schools |
| AJDS | Association of Jewish Day Schools |
| AJHS | Abington Junior High School |
| AJHS | Abraham Joshua Heschel School |
| AJHS | Ada Junior High School |
| AJHS | Albany Junior High School |
| AJHS | Alvarado Junior High School |
| AJHS | Andersen Junior High School |
| AJHS | Andrew Jackson High School |
| AJHS | Apache Junction High School |
| AJHS | Aptos Junior High School |
| AJHS | Arab Junior High School |
| AJHS | Auburn Junior High School |
| AJNP | A Joyful Noise Preschool |
| AKF | Abby Kelley Foster Charter School |
| AKIS | Al Khor International School |
| AKS | Andros Karperos School |
| ALDCS | Archdiocese of Lingayen Dagupan Catholic Schools |