HRT
HRT is an abbreviation for:
- Habit reversal training, a cognitive-behavioral methods of treating nervous behavior habits
- Hand radio terminal, a walkie-talkie for the trunked radio
- Action control theory, a psychological theory of work for inner spiritual structure of human actions
- Hartwell Railroad, a railroad company
- Heidelberg retina tomograph, a scanning laser ophthalmoscope for examining the eye
- Heidelberger rake test, a test for detecting basic mathematical skills of primary school age
- Helsingforsregionens trafik, transport system in the Helsinki region, see Helsingin Seudun liikenne
- High-reliability theory
- Hispania Racing F1 Team, a former traveling with Spanish license Motorsport team, who raced from 2010 to 2012 in Formula 1
- Hormone Replacement Therapy, Hormone replacement therapy, drug treatment of menopausal symptoms
- Hostage Rescue Team, a special unit of the U.S. Federal Bureau of Investigation
- Hrvatska Radiotelevizija, the public broadcasting company in Croatia
- Hydraulic retention time in the biogas technology, the average residence time of a substrate in a reactor
- Disambiguation
- Abbreviation