| Abbreviation | Definition |
|---|---|
| AHHS | Arlington Heights High School |
| AHIGS | Association of Heads of Independent Girls Schools |
| AHISD | Alamo Heights Independent School District |
| AHJS | Alamo Heights Junior School |
| AHMS | Abington Heights Middle School |
| AHMS | ASPIRA Haugan Middle School |
| AHMS | Aurora Hills Middle School |
| AHS | Accelerated High School |
| AHS | Addison High School |
| AHS | Adelanto High School |
| AHS | Adult High School |
| AHS | Affton High School |
| AHS | Alameda High School |
| AHS | Albemarle High School |
| AHS | Alhambra High School |
| AHS | Always Has School |
| AHS | American High School |
| AHS | Amsterdam High School |
| AHS | Anacortes High School |
| AHS | Antlers High School |