- ACNP stands for American College of Neuropsychopharmacology
- ACNP stands for Acute Care Nurse Practitioner
- ACNP stands for American College of Nurse Practitioners
- ACNP stands for American College of Nuclear Physicians
- ACNP stands for Asociación Católica Nacional de Propagandistas (Spanish: National Catholic Association of Propagandists)
- ACNP stands for Archivio Collettivo Nazionale delle Pubblicazioni Periodiche
- ACNP stands for Aerohive Certified Network Professional
- ACNP stands for American College of Neuropsychiatrists
- ACNP stands for Assistant Chief of Naval Personnel
- ACNP stands for Allied Chemical Nuclear Products, Inc.
ACNP