HLS

HLS may refer to:

Organisations

• Harlington Locomotive Society, London, England
• HealthSouth, a former American hospital operator
• Huntingdon Life Sciences, a British contract research organisation
• HLS Ost (German: Horchleitstelle Ost; English: Intercept Control Station East), German WWII cryptanalysis station

Education

• Harvard Law School, Cambridge, Massachusetts, US
• Helen Lowry Higher Secondary School, Mizoram, India
• Highlands Latin School, Louisville, Kentucky, US

Technology

• HTTP Live Streaming, a media streaming communications protocol
• HLS color space, a representation of points in an RGB color model
• High-level synthesis, an automated design process

Transportation

• Human Landing System, a NASA program to choose a Moon landing system for the 2020s
  • Starship HLS, a modified version of the SpaceX Starship
• Heavy Logistics System, a USAF program to develop the Lockheed C-5 Galaxy
  • Lockheed C-5 Galaxy, the winner of the USAF HLS project
• Haiti Air Freight (ICAO airline code HLS); see List of defunct airlines of Haiti
• St Helens Airport (IATA airport code HLS), Tasmania, Australia
• Hilsea railway station (station code HLS), England, UK

Other uses

• Historical Dictionary of Switzerland (German: Historisches Lexikon der Schweiz)
• Holy See; also UNDP country code for Vatican City
• Himalayan Languages Symposium, an annual academic conference on Trans-Himalayan languages

See also

• Health and life sciences; see health sciences and life sciences
• HL (disambiguation)
• HIS (disambiguation)