HRT

HRT most commonly refers to:

• Gender-affirming hormone therapy, also known as hormone replacement therapy
  • Masculinizing hormone therapy
  • Feminizing hormone therapy
• Hormone replacement therapy, a treatment used to reduce symptoms associated with menopause
• Hostage Rescue Team, the FBI's elite tactical unit

HRT may also refer to:

Health and medicine

• Habit reversal training
• Heart rate turbulence
• Humane Research Trust, a British medical research charity

Language

• Hértevin language, spoken in Turkey
• High rising terminal, a feature of speech

Motor racing

• HRT Formula 1 Team, Spain
• Haupt Racing Team, Germany
• Holden Racing Team, Australia

Transport

Rail

• Hartwell Railroad, Georgia, United States (US)
• Heavy rail transit
• Hertfordshire Rail Tours, England
• Hiroshima Rapid Transit, Japan
• Honolulu Rail Transit, Hawaii, US (now Skyline)

Other transport

• Hampton Roads Transit, Norfolk-Virginia Beach area, US
• Helsinki Regional Transport Authority (Swedish: Helsingfors Regionaltrafik)
• Hurlburt Field, a US Air Force field in Florida, US
• RAF Linton-on-Ouse, England (IATA:HRT)

Other uses

• Hard real-time, in computing
• Hertfordshire, county in England (by Chapman code)
• Hrvatska radiotelevizija, Croatia's national broadcaster
• Hudson River Trading, an American firm
• Hydraulic retention time, in fluid dynamics
• Horse Race Tests, viral Twitter videos