TRE (or Tre) may refer to:

Biology and medicine [edit]

• Tre recombinase, an experimental cure for HIV
• Thyroid hormone response element (see Hormone response element)
• Tetracycline response element, a DNA sequence important in tetracycline-controlled transcriptional activation

Music [edit]

• Tre, a music album by Teresa De Sio
• ¡Tré!, the eleventh studio album by Green Day, and third part of ¡Uno! ¡Dos! ¡Tré! trilogy

People [edit]

• Tre Cool, drummer for the band Green Day
• Tre Van Die Kasie, a Namibian Kwaito artist
• Tre Williams, an American rapper
• Tre Styles, lead character in the movie Boyz N the Hood

Other [edit]

• Hutchison 3G, trading as 3, a mobile operator in Sweden
• Tampere, a city in Finland
• Telecommunications Research Establishment, British radar research organization
• Tempore Regis Eduardi (Latin for in the time of King Edward), much used in the Domesday Book (1085-1086) and meaning the period immediately before the Norman conquest of England
• Timing Retard Eliminator, a device used to supposedly improve the performance of Suzuki motorcycles
• Tiree Airport, IATA airport code TRE
• Transnet Rail Engineering, formerly Transwerk, a division of Transnet, the South African rail transport parastatal
• Tribunal Regional Eleitoral, an appellate court in Brazil
• Trinity Railway Express, commuter rail line in the Dallas Fort Worth Metroplex
• Tre Volost, a division of the Novgorod Republic
• TRE (computing), a regular expression engine with approximate (fuzzy) matching ability.
• Theologische Realenzyklopädie, a German encyclopedia of theology and religious studies
• Trauma Releasing Exercises, a set of physical exercises designed by Dr. David Berceli to release stress and trauma from the body

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