TRS

• Taxable REIT subsidiaries, real estate investment trusts
• Teacher Retirement System of Texas, a pension plan
• Teachers' Retirement System of the State of Illinois, a pension agency
• Technical rate of substitution, marginal rate of technical substitution in economics
• Total return swap
• Total revenue share

• Telangana Rashtra Samithi, former name of Bharat Rashtra Samithi, a political party in Telangana, India
• ThalesRaytheonSystems, French-American aerospace and defense electronics company
• The Right Stuff (blog), a far-right podcasting site and blog
• Turtle Rock Studios, a video game developer

• Telecommunications relay service, telephone service for the deaf
• Ticketing and Reservation System, China Railways
• Tip-Ring-Sleeve, a phone connector type
• Timing Reference Signal in serial digital interface for video
• Term rewriting system in mathematics
• Transmission Raman spectroscopy
• TRS-80, a Tandy Radio Shack personal computer

• TRS, IATA code for Friuli Venezia Giulia Airport, near Trieste, Italy
• TRS, ICAO code for AirTran Airways, in Orlando, Florida, US

• Theatre Royal Sydney, a theatre in Sydney, Australia
• Trainz Railroad Simulator, a series of computer games
• Toyota Racing Series, a car racing series based in New Zealand

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