SMRT
- Homer Goes to College
- Mass Rapid Transit (Singapore)
- SMRT Buses
- SMRT Corporation
- SMRT Trains
- Santa Maria Regional Transit
- Scenic Mississippi Regional Transit
- Seoul Metropolitan Rapid Transit Corporation
- Silencing mediator for retinoid and thyroid-hormone receptor
- Single Molecule Real Time Sequencing
- Southern Maryland Rapid Transit
- St Mary Redcliffe and Temple School
- Thomas J. Smrt