| RTN | Racetrack Television Network 
| Others |
| RTN | Racing Technology Norfolk
| Others |
| RTN | Raleigh Television Network
| Others |
| RTN | Rapid Tissue Necrosis
| Others |
| RTN | Rapid Transit Network
| Others |
| RTN | Rapid Transport Network
| Others |
| RTN | Rate Treatment Number
| Others |
| RTN | Raton, New Mexico USA
| Others |
| RTN | Ray Tracing News
| Others |
| RTN | Real Time Network
| Others |
| RTN | Real Time Networks
| Others |
| RTN | Real- Time Network
| Others |
| RTN | Recursive Transition Network
| Others |
| RTN | Reflective Twisted Nematic
| Others |
| RTN | Regional Telecommunication Network
| Others |
| RTN | Regional Transport Network
| Others |
| RTN | Register Tape Network
| Others |
| RTN | Register Transfer Notation
| Others |
| RTN | Register Transmission Notation
| Others |
| RTN | Reichenbach Tense Name
| Others |
| RTN | Reincarnatie Therapie Nederland/ Reincarnation Therapy Netherlands
| Others |
| RTN | Remember The Name
| Others |
| RTN | Renault Truck Network
| Others |
| RTN | Renault Trucks Nederland
| Others |
| RTN | Research Training Network
| Others |
| RTN | Restaurant Technology Network
| Others |
| RTN | Retrain Negative in Electronic engineering
| Others |
| RTN | Retro Television Network
| Others |
| RTN | Return To New
| Others |
| RTN | Return To Normal
| Others |
| RTN | Rince Tuatha Nua
| Others |
| RTN | Road to Ninja
| Others |
| RTN | Road Traffic Noise
| Others |
| RTN | Road Transportation Network
| Others |
| RTN | Rough Turned and Normalized
| Others |
| RTN | Rough, Turned, and Normalized
| Others |
| RTN | Routing Transit Number
| Others |
| RTN | Routing Transport Number
| Others |
| RTN | Rowan Television Network
| Others |
| RTN | Royal Thai Navy
| Others |
| RTN | Runner Triathlete News
| Others |
| RTN | Rural Transport Network
| Others |
| RTN | Russian Translators Network
| Others |
| RTN | Ryan Taylor and Nolan
| Others |