Thr

THR or Thr may refer to:

• Mehrabad International Airport (IATA airport code: THR), an international airport serving Tehran, the capital city of Iran
• Tehran Airline (ICAO airline code: THR), see List of airline codes (T)
• thrust (THR), see List of aviation, aerospace and aeronautical abbreviations
• threshold (THR), see List of aviation, aerospace and aeronautical abbreviations

• Target heart rate, a desired range of heart rate reached during aerobic exercise
• Threonine (Thr), an amino acid that is used in the biosynthesis of proteins
• Thrombin (Thr), a serine protease
• Tobacco harm reduction
• Total hip replacement

• The Hollywood Reporter, a Los-Angeles–based magazine and website (founded 1930)
• Times-Herald Record, a New York daily newspaper (founded 1956)
• THR.fm, a Malaysian radio station (aired 1994–2005)
• WTHR, a television station in Indiana, US (first aired 1957)

• HTC–Highroad, a road cycling team (1989-2011; OCI team code: THR)
• Rana Tharu language, spoken in Nepal (ISO 639: thr)
• THR (soldering)
• Yamaha THR, a series of guitar amps

• Thrr (disambiguation)