| Acronym | Definition |
|---|
| LRT | Light-Rail Transit |
| LRT | Limburg Racing Team (Netherlands) |
| LRT | Likelihood Ratio Test |
| LRT | Light Rapid Transit |
| LRT | Land Reform and Taxation (economics) |
| LRT | Lower Respiratory Tract |
| LRT | Long Range Transportation |
| LRT | Lehrstuhl für Raumfahrttechnik |
| LRT | Locked Rotor Torque (motors) |
| LRT | Light Railway Transit |
| LRT | London Regional Transport |
| LRT | Laredo, Texas (border patrol sector) |
| LRT | Last Retweet |
| LRT | Loving Relationships Training |
| LRT | Linear Resistive Transducer (actuators) |
| LRT | Land and Resources Tribunal (Australia) |
| LRT | Lead Response Team (Traumatic Loss Coalition) |
| LRT | Logistics Response Time |
| LRT | Lothian Region Transport |
| LRT | Latency-Related Transcript |
| LRT | London Resilience Team |
| LRT | Land Transport Authority of Singapore |
| LRT | Life's Rich Tapestry |
| LRT | Laser Radio Terminal |
| LRT | Lorient, France - Lann-Bihoue (Airport Code) |
| LRT | Liquid Release Test |
| LRT | Lorentz Reciprocity Theorem (electromagnetism) |
| LRT | LR Technologies |
| LRT | Link Remote Inhibit Test (SS7) |
| LRT | Low Rate Telemetry (satellite health and status reporting) |
| LRT | Laboratory Response Team |
| LRT | Long Range Torpedo |
| LRT | Laser Receiver-Transmitter |
| LRT | Last Resort Target |
| LRT | Local Reference Terminal |
| LRT | Long Retention Time |
| LRT | Leukocyte Removal Therapy |
| LRT | Largest Remaining Task (logistics) |
| LRT | Landsforeningen Rettferd for Tapere |
| LRT | Long Reaction Time |
| LRT | Laser Rangefinder Theodolite |
| LRT | Long-Ring Timer |
| LRT | Long Range Typhoon (proposed missile) |
| LRT | Loki Ranging Transponder |