| Abbreviation | Definition |
|---|---|
| ABC | Atlantic Baptist College |
| ABCS | American Bible College and Seminary |
| ABHC | Army Burn Hall College |
| ABSC | Arizona Barber Styling College |
| ABUSCO | Abuakwa State College |
| AC | Assumption College |
| ACA | American College of Apothecaries |
| ACA | Appalachian College Association |
| ACA | Atlanta College of Art |
| ACA | Awassa College of Agriculture |
| ACAA | Atlantic Colleges Athletic Association |
| ACAC | ACAC Of course Alberta Colleges |
| ACAC | Alberta Colleges Athletics Conference |
| ACAC | American College Application Campaign |
| ACACS | Arihant College of Arts Commerce and Science |
| ACACS | Arihant College of Arts Commerce Science |
| ACAD | Alberta College of Art & Design |
| ACAD | Alberta College of Art and Design |
| ACAD | Alberta College of Art Design |
| ACAM | American College for Advancement in Medicine |