| Acronym | Definition |
|---|
| NTTF➣Nettur Technical Training Foundation |
| NTTF➣Non-Tenure Track Faculty (various universities) |
| NTTF➣National Telecommunications Task Force (various schools) |
| NTTF➣Network Test and Training Facility |
| NTTF➣Norges Tannteknikerforbund (Norwegian: Norway Dental Technician Association; Fagernes, Norway) |
| NTTF➣National Right to Read Foundation |