ACNN
| Acronym | Definition |
|---|---|
| ACNN | Australian Conference on Neural Networks |
| ACNN | Association of Child Neurology Nurses |
| ACNN | Australian College of Neonatal Nurses (est. 1992) |
| ACNN | Autosport Competitie Noord Nederland (Dutch: Northern Netherlands Autosport Competition) |
| ACNN | Age Concern Nottingham and Nottinghamshire (UK) |