HDR

HDR may refer to:

Science and technology

• Hard disk recorder, for digital audio or video
• HD Radio, digital audio broadcasting system
• High data rate, now Evolution-Data Optimized, a telecommunications standard
• High dynamic range, in audio or video
• Homology directed repair, a DNA repair system in cells
• Hot dry rock, a form of geothermal energy production
• GATA3, a protein also named HDR

Organizations

• HDR, Inc., an American architectural and engineering firm
• HevyDevy Records, a Canadian record label
• High Dive Records, an American record label
• Honicknowle Defence Regiment, English criminal organization from Honicknowle, Plymouth

Other uses

• The initials of Hillary Diane Rodham, former First Lady of the United States, U.S. Senator from New York and Secretary of State
• Habilitation à diriger des recherches (accreditation to supervise research), an academic qualification in France
• Hadrian Road Metro station (station code), in England
• Human Development Report, an annual United Nations publication
• Humanitarian daily ration, an air-dropped ration for disasters
• Hyderabad Junction railway station (station code), in Sindh, Pakistan
• Header (disambiguation)