HRT may refer to:

Health and medicine

* Habit reversal training * Heart rate turbulence *

Hormone replacement therapy Hormone replacement therapy (HRT), also known as menopausal hormone therapy or postmenopausal hormone therapy, is a form of hormone therapy used to treat symptoms associated with female menopause. These symptoms can include hot flashes, vaginal ...

, a treatment used to reduce symptoms associated with menopause *

Transgender hormone therapy Transgender hormone therapy, also called hormone replacement therapy (HRT) or gender-affirming hormone therapy (GAHT), is a form of hormone therapy in which sex hormones and other hormonal medications are administered to transgender or gender non ...

, also known as hormone replacement therapy * Humane Research Trust, a British medical research charity * Heidelberg Retinal Tomography, a diagnostic procedure that produces three-dimensional images of the

optic nerve In neuroanatomy, the optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual information from the retina to the brain. In humans, the optic nerve is derived fro ...

Motor racing

HRT Formula 1 Team HRT Formula 1 Team, formerly known as Campos Meta 1 and Hispania Racing, was a Spanish Formula One team founded by former driver Adrián Campos. It was sold to José Ramón Carabante before its debut in 2010, and then to investment group Th ...

, now defunct *

Walkinshaw Andretti United Walkinshaw Andretti United is an Australian motor racing team based in the Melbourne suburb of Clayton. The team currently fields two Holden ZB Commodores in the Supercars Championship for Nick Percat and Chaz Mostert, along with a Porsche 91 ...

, an Australian motor racing team that previously traded as the Holden Racing Team

Transport

Hampton Roads Transit Hampton Roads Transit (HRT), incorporated on October 1, 1999, began through the voluntary merger of PENTRAN ( Peninsula Transportation District Commission) on the Virginia Peninsula and TRT ( Tidewater Regional Transit a.k.a. Tidewater Transit ...

, in the Norfolk-Virginia Beach, United States metro area *

Hartwell Railroad The Hartwell Railroad dates to 1878 when the company was chartered to build a narrow gauge rail line between Hartwell and Bowersville in Hart County, Georgia. The 10-mile railroad was completed the following year. In 1898, it was reorganized a ...

, in Georgia, United States *

Heavy rail transit Various terms are used for passenger railway lines and equipment; the usage of these terms differs substantially between areas: Rapid transit A rapid transit system is an electric railway characterized by high speed (~) and rapid accelerati ...

Helsinki Regional Transport Authority The Helsinki Regional Transport Authority ( fi, Helsingin seudun liikenne, HSL; sv, Helsingforsregionens trafik, HRT) is the inter-municipal authority that maintains the public transportation network of the nine municipalities of Greater ...

(Swedish: ') * Hertfordshire, county in England, Chapman code *

Hertfordshire Rail Tours Hertfordshire Rail Tours was a company that operated charter trains in the United Kingdom. Founded in Hertfordshire by John Farrow, most of its trains started from London Terminals. The company was purchased by FM Rail in September 2005. FM Rai ...

, a defunct British railway company *

Hiroshima Rapid Transit is a transportation company based in Hiroshima, Japan. Hiroshima Rapid Transit operate a people mover called the Astram Line in Hiroshima is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,39 ...

, in Japan *

Honolulu Rail Transit The Honolulu Rail Transit Project (also known as the Honolulu High-Capacity Transit Corridor Project) is a light metro system under construction in Honolulu County, Hawaii, U.S. The mostly elevated system features design elements from both heav ...

, an under-construction light rail project in

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state ...

Hurlburt Field Hurlburt Field is a United States Air Force installation located in Okaloosa County, Florida, immediately west of the town of Mary Esther. It is part of the greater Eglin Air Force Base reservation and is home to Headquarters Air Force Spe ...

, a United States Air Force field in Florida, United States *

RAF Linton-on-Ouse RAF Linton-on-Ouse was a Royal Air Force (RAF) station at Linton-on-Ouse in North Yorkshire, England, north-west of York. It had satellite stations at RAF Topcliffe and Dishforth Airfield (British Army). The station opened in 1937. With t ...

, a Royal Air Force station in England (IATA code: HRT)

Other uses

Hrvatska radiotelevizija ''Hrvatska radiotelevizija'' (abbr. HRT), or Croatian Radiotelevision, is Croatia's public broadcasting company. It operates several radio and television channels, over a domestic transmitter network as well as satellite. HRT is divided into thr ...

, Croatia's national broadcaster *

Hard real-time Real-time computing (RTC) is the computer science term for hardware and software systems subject to a "real-time constraint", for example from event to system response. Real-time programs must guarantee response within specified time constrai ...

, in computing *

Hértevin language Hertevin is a dialect of Northeastern Neo-Aramaic originally spoken by Chaldean Catholics in a cluster of villages in Siirt Province in southeastern Turkey. Speakers of Hértevin Aramaic have emigrated mostly to the West, and are now scattered a ...

, spoken in Turkey *

High rising terminal The high rising terminal (HRT), also known as upspeak, uptalk, or high rising intonation (HRI) is a feature of some variants of English where declarative sentences can end with a rising pitch similar to that typically found in yes-or-no questions ...

, a feature of speech *

Hostage Rescue Team The Hostage Rescue Team (HRT) is the elite tactical unit of the Federal Bureau of Investigation (FBI). The HRT was formed to provide a full-time federal law enforcement tactical capability to respond to major terrorist incidents throughout the ...

, the FBI's elite tactical unit *

Hudson River Trading Hudson River Trading (HRT) is a quantitative trading firm headquartered in New York City and founded in 2002. In 2014, it accounted for about 5% of all trading in the United States. Trading Although HRT is often classified as engaging in high- ...

, an American trading firm * Hydraulic retention time, in hydrology {{Disambiguation