HR

HR, H.R., Hr or hr may refer to:

Film and television

 * H.R. Pufnstuf, a children's television series from 1969
 * HR, a 2013 television drama starring Alicia Silverstone
 * HR, a criminal organisation in the American TV series Person of Interest

Other media

 * HR (girl group), Japan
 * Hessischer Rundfunk (Hessian Broadcasting), Germany

Fictional characters

 * H. R. Wells, a character from The Flash television series

Business and finance

 * Human resources, personnel
 * Human resource management
 * Ukrainian hryvnia, currency

Government and politics

 * High Representative of the Union for Foreign Affairs and Security Policy of the European Union
 * United States House of Representatives

Languages

 * hr (ISO 639-1 code) for the Croatian language
 * $⟨hr⟩$, a two-letter combination used in some languages
 * Reduction of /hr/ to /r/ in Old/Middle English

People

 * H.R. (musician) (born 1956), lead singer of American band Bad Brains

Places

 * HR (ISO 3166-1 code) for Croatia
 * HR postcode area, UK, covering six post towns around Hereford, England
 * IN-HR (ISO 3166 code) for Haryana, a state in North India

Religion

 * HR, an honorific abbreviating His Reverence or Her Reverence

Biology and medicine

 * HR (gene), encoding protein hairless
 * Haemodynamic response, delivery of blood to tissues
 * Heart rate
 * Homologous recombination, in genetics
 * Hypersensitive response, of plants to infection
 * Hydroxyethylrutoside, a class of drugs

Computing

 * HTML_element, an HTML element
 * .hr, Internet code for Croatia
 * HR (software), mathematical theory generator
 * Half Rate (HR or GSM-HR), a speech coding system

Other uses in science and technology

 * Hazard ratio
 * Hertzsprung–Russell diagram (H-R, HRD), in astronomy and astrophysics
 * High-resolution high-definition (HRHD, HR, HRHDTV or HR.HDTV) image resolution
 * Hour (hr)
 * HR, Bright Star Catalogue prefix
 * Nissan HR engine

Sports

 * Home run in baseball

Transportation

 * Former Scots Highland Railway
 * Holden HR, a car 1966-1968
 * Haryana Roadways State Transport, India