HRD may refer to: Science and medicine Hertzsprung–Russell diagram, in astronomy Homologous recombination deficiency Hurricane Research Division, of the United States National Oceanic and Atmospheric Administration Sport Home Run Derby, Major League Baseball Humboldt Roller Derby Houston Roller Derby Hurdles Other uses Croatian dinar, a former currency of Croatia Handel Reference Database Harling Road railway station, in England Harlem River Drive, in New York City Hood River Distillers HRD Motorcycles, a British motorcycle manufacturer Human remains detection Human resource development Human rights defender