| Acronym | Definition |
|---|
| RCT | Rollercoaster Tycoon |
| RCT | Randomized Controlled Trial |
| RCT | Regimental Combat Team (infantry regiment with their own artillery, engineers, medical and tanks) |
| RCT | Randomized Clinical Trial |
| RCT | Rugby Club Toulonnais (French rugby club) |
| RCT | Rhondda Cynon Taff (Wales) |
| RCT | Root Canal Treatment |
| RCT | Root Canal Therapy |
| RCT | Recitation (education) |
| RCT | Reverse Cholesterol Transport |
| RCT | Réseau Canadien de Technologie (French: Canadian Technology Network) |
| RCT | Radiological Control Technician |
| RCT | Royal Corps of Transport |
| RCT | Riverside Children's Theatre (Riverside, CA) |
| RCT | Regents Competency Test |
| RCT | Rotator Cuff Tear |
| RCT | Return Channel Terrestrial |
| RCT | Residential Component Technology (Canada) |
| RCT | Radiation Control Technician |
| RCT | Rhondda Cynon Taff County Borough Council (UK) |
| RCT | Repair Cycle Time |
| RCT | Reverse Conducting Thyristor (semiconductor device) |
| RCT | Reversible Color Transform (computer imaging formula) |
| RCT | Rapid Configuration Tool (software) |
| RCT | Resource Control Table |
| RCT | Richland County Transit |
| RCT | Resource Conservation Technology (various organizations) |
| RCT | Route-Set Congestion Test |
| RCT | Receive Connection Table |
| RCT | Rede de Ciência E Tecnologia (Portuguese: Network of Science and Technology; Brazil) |
| RCT | Rice Crispy Treat |
| RCT | Ritchey-Chrétien Telescope |
| RCT | Revenue Canada Taxation |
| RCT | Reserve Counterpart Training |
| RCT | Reality Capture Technologies, Inc. |
| RCT | Risk Contribution Tree |
| RCT | Roma Cruise Terminal |
| RCT | Rapid Change Technologies, Inc. |
| RCT | Reaction Control Thruster |
| RCT | Residue Calculus Technique |
| RCT | Radiation Contamination Training |
| RCT | Remote Concentrator Terminal |
| RCT | Reengineering Coordination Team |
| RCT | Radar Control Trailer |
| RCT | Remotely Controlled Transporter |
| RCT | Registered Cardiology Technician |
| RCT | Remote Control Turret |
| RCT | Rotherham Corporation Transport (British municipal bus company) |
| RCT | Requirements Collaboration Team |
| RCT | Ring Circuit Test |
| RCT | Recipe Correlation Table |
| RCT | RAD-Group Communication Technologies Ltd (system integrator) |
| RCT | Real Calton Tongs (UK) |
| RCT | Ratio Correcting Transformer |
| RCT | Resistor Capacitor Time |
| RCT | Reyburn CyberTuner (software) |
| RCT | Rupture du Contrat de Travail (French: Out of Contract Labor) |
| RCT | Radiotherapy and Chemotherapy (medical treatment) |
| RCT | Radial Cutting Torch (Weatherford International Ltd.) |