HLS
HLS stands for:
- Harvard Law School
- House and Agricultural School, a vocational school
- Heating, ventilation, plumbing in the building sector
- Helene- Lange-Schule (Frankfurt am Main )
- Helene Lange School (Hannover)
- Helene- Lange-Schule (Oldenburg )
- Helene- Lange-Schule (Wiesbaden)
- Hella Lighting Systems GmbH, a subsidiary of Paderborn Hella KGaA Hueck & Co. of Lippstadt.
- Historical Dictionary of Switzerland
- High power siren, a high-pressure pneumatic Irene, who is the loudest alarm device in the world with a sound pressure of 131 dB at 30 m distance.
- High performance street, a street type in Liechtenstein.
- Honeywell Life Security, see Honeywell International
- Raising kit, a form of tuning for motorcycles
- HTTP Live Streaming
- Hue, Lightness, Saturation ( color model ), see the HSV color space
- Huntingdon Life Sciences, Europe's largest laboratory animal experiments involving laboratories in Huntingdon and Occold in England and East Millstone, New Jersey in the United States.
- Disambiguation
- Abbreviation