TRST, Trst, or variations, may refer to:
Trieste (), a city in Italy Trst (album), stylized as TRST, the 2012 debut album for Canadian synth-pop band TR/ST TR/ST, Canadian electropop band Rai Radio Trst A, aka Radio Trst, Slovene-language radio station in Trieste TRST (test reset), a command signal found in JTAG TRST (market research), Toy Retail Survey Tracking, associated with the NPD Group
See also Tryst (disambiguation) Trust (disambiguation) Trist (set index)