HAL may refer to:
Aviation
Halali Airport (IATA airport code: HAL) Halali, Oshikoto, Namibia
Hawaiian Airlines (former ICAO airline code: HAL)
HAL Airport, Bengaluru, India
Hindustan Aeronautics Limited an Indian aerospace manufacturer of fighter aircraft and helicopters
Businesses
HAL Allergy, a Dutch pharmaceutical company
HAL Computer Systems, a defunct computer manufacturer
HAL Laboratory, a Japanese video game developer
Halliburton's New York Stock Exchange ticker symbol
Hamburg America Line, a shipping company
Hindustan Aeronautics Limited, an Indian aerospace manufacturer of fighter aircraft and helicopters
Hindustan Antibiotics Limited, an Indian public sector pharmaceutical manufacturer
Holland America Line, a cruise ship operator
HAL FM, or CHNS-FM, a classic rock station in Halifax, Nova Scotia
Computing
Hardware abstraction layer, a layer of software that hides hardware differences from higher level programs
hal.dll, a critical system file in Microsoft Windows acting between the operating system and the computer's hardware
HAL (software), an implementation of a hardware abstraction layer for Unix-like systems
HAL/S, the computer language used to program the Space Shuttle's computers
HAL, a Lotus Development product released in 1986
Hackers at Large, a Dutch hackers and security conference
Hypertext Application Language, a standard convention for defining hypermedia such as links to external resources within JSON or XML code
Entertainment
HAL 9000, a fictional computer in the Space Odyssey series
Hal (Japanese band), a Japanese pop band
Hal (Irish band), an Irish rock band
H.A.L. (G.I. Joe), a fictional weapon in the G.I. Joe universe
Other
HAL (automobile), a car built in Cleveland 1916-1918
HAL (gene), which encodes the enzyme histidine ammonia-lyase
HAL (open archive) (Hyper Articles en Ligne), a French online research open archive
Hybrid Assistive Limb, a powered exoskeleton suit
Het Amsterdams Lyceum, a Dutch secondary school
Hindustan Aeronautics Limited SC, a football club in Bangalore, India
Hyperspace Analogue to Language, a semantic memory model
Hyundai A-League, an Australian professional association football league
Halim LRT station, a light rail station in Jakarta, Indonesia