| Abbreviation | Definition |
|---|---|
| APSACS | Army Public School and College System |
| APSACS | Army Public Schools and College System |
| APSB | Acadia Parish School Board |
| APSB | Ascension Parish School Board |
| APSB | Avoyelles Parish School Board |
| APSD | Arkadelphia Public School District |
| APSI | Action Plan for School Improvement |
| APSN | Army Public School Noida |
| APSS | Asia Pacific Smart School |
| APSS | Asia Pacific Summer School |
| APTIS | Aviva Pension Trust for Independent Schools |
| APTS | Alternative Paths Training School |
| APTS | Army Physical Training School |
| APUSMA | Andhra Pradesh Unaided Schools Management Association |
| AQS | American Quality Schools |
| ARAM | Academic-based Resource Allocation Model |
| ARES | Amazon River Elementary School |
| ARHS | Algonquin Regional High School |
| ARHS | Amherst Regional High School |
| ARHS | Apponequet Regional High School |