- AACN stands for American Association of Critical-Care Nurses
- AACN stands for American Association of Colleges of Nursing
- AACN stands for American Academy of Clinical Neuropsychology
- AACN stands for Advanced Automatic Crash Notification (General Motors)
- AACN stands for American Academy of Clinical Neurophysiology
- AACN stands for American Academy of Colleges of Nursing
AACN