RTP
- Enhanced Interior Gateway Routing Protocol
- RTMP (disambiguation)
- RTP (Bolivia)
- RacingThePlanet
- Radiation treatment planning
- Ragam Thanam Pallavi
- Rally of the Togolese People
- Rapid thermal processing
- Real-time Transport Protocol
- Recreational Trails Program
- Red de Transporte de Pasajeros
- Regional Transportation Plan
- Registered Teacher Programme
- Reinforced thermoplastic pipe
- Rendezvous and Termination Protocol
- Research Triangle Park
- Reserve Tranche Position
- Return to Player
- Round-the-pole flying
- Royal Thai Police
- Rádio e Televisão de Portugal