| Abbreviation | Definition |
|---|---|
| AGSD | Angela Grant School of Dance |
| AGSD | Avon Grove School District |
| AGSEI | Australian Graduate School of Engineering Innovation |
| AGSL | Australian Graduate School of Leadership |
| AGSM | Anderson Graduate School of Management |
| AGSM | Athens Graduate School of Management |
| AGSM | Australian Graduate School of Management |
| AGST | Asia Graduate School of Theology |
| AGST | Assemblies of God School of Theology |
| AGST | Austin Graduate School of Theology |
| AGTS | Air Gunners Training School |
| AHAS | At Home At School |
| AHAWS | Army High Altitude Warfare School |
| AHHS | Abington Heights High School |
| AHHS | Alamo Heights High School |
| AHHS | Alief Hastings High School |
| AHHS | Andrew Hill High School |
| AHHS | Archbishop Hannan High School |
| AHHS | Ardrey Kell (Hell) High School |
| AHHS | Ardrey Kell (Hell) High School |