TRS
- AirTran Airways
- Bharat Rashtra Samithi
- Friuli Venezia Giulia Airport
- Rewriting
- Serial digital interface
- TRS-80
- Taxable REIT subsidiaries
- Teacher Retirement System of Texas
- Teachers' Retirement System of the State of Illinois
- Technical rate of substitution
- Telecommunications relay service
- ThalesRaytheonSystems
- The Right Stuff (blog)
- Theatre Royal Sydney
- Ticketing and Reservation System
- Total return swap
- Total revenue share
- Toyota Racing Series
- Trainz Railroad Simulator
- Transmission Raman spectroscopy
- Turtle Rock Studios