| Acronym | Definition |
|---|
| RNT | Royal National Theatre (London, UK) |
| RNT | Rich-N-Tone (Stuttgart, AR duck call company) |
| RNT | Radio Numérique Terrestre (French: Digital Terrestrial Radio) |
| RNT | Reseau Nouvelles Technologies (French: New Technologies Network) |
| RNT | Radioshack-Nissan-Trek (professional road bicycle racing team) |
| RNT | Registered Nurse Tutor (various locations) |
| RNT | Rotary Nickel Titanium |
| RNT | Recruiting New Teachers, Inc. |
| RNT | Residual Nitrogen Time (SCUBA diving) |
| RNT | Reactive Neuromuscular Training (plyometrics) |
| RNT | RightNow Technologies, Inc. (customer relationship management) |
| RNT | Robin Nolan Trio (band) |
| RNT | Réseau National des Télécentres (French: National Network of Telecenters) |
| RNT | Registered Nurse Teacher |
| RNT | Reverse Notification Tree |
| RNT | Registered Neurophysiology Technologist |