TRV can refer to:
- Technical remote viewing, in parapsychology
- Thermostatic radiator valve
- Transient recovery voltage
- The IATA airport code for Thiruvananthapuram International Airport
- Tobacco rattle virus
- New York Stock Exchange symbol for The Travelers Companies
- Trenner Verzeichnis (written “TrV”), a catalogue for the works of Richard Strauss, created by Franz Trenner
- Seediq language of northern Taiwan (ISO 639 code: <code>trv</code>)
- Torpedo recovery vessel
- TRV Tailor (803)
- TRV Trevally (802)
- TRV Tuna (801)