| Abbreviation | Definition |
|---|---|
| AABA | American Anorexia Bulimia Association |
| AACN | American Association of Colleges of Nursing |
| AACN | Association Alliance of Collegiate Nursing |
| AAN | American Academy of Nursing |
| AAN | Associate of Arts in Nursing |
| AANA | American Association of Nurse Anesthetists |
| AANN | American Association of Neuroscience Nurses |
| AANP | American Academy for Nurse Practitioners |
| AANP | American Association of Nurse Practitioners |
| AANS | Australian Army Nursing Service |
| AAON | American Association of Office Nurses |
| AAONP | American Association of Nurse Practitioners |
| AAPINA | Asian American Pacific Islander Nurses Association |
| AARN | Alberta Association of Registered Nurses |
| ABN | Alabama Board of Nursing |
| ABSN | Accelerated Bachelor of Science in Nursing |
| ABSN | Accelerated Bachelors of Science in Nursing |
| ACCN | American College of Cardiovascular Nursing |
| ACCN | Association of Critical Care Nurses |
| ACDN | Aotearoa College of Diabetes Nurses |