NAAN
| Acronym | Definition |
|---|---|
| NAAN | Name Assigning Authority Number |
| NAAN | Native American/Alaska Native |
| NAAN | Netherlands Alumni Association of Nepal (est. 1988; Kathmandu, Nepal) |
| NAAN | Niederrhein Akademie/Academie Nederrijn (German: Lower School/Academy Nederrijn; Germany) |
| NAAN | National Affiliate Advocacy Network (schools) |
| NAAN | Nottingham Area Artists Network (UK) |
| NAAN | New Apprenticeship Authorisation Number |