HSL
HSL stands for:
- Commercial key list number (GDR)
- Hawaiʻi Sign Language , see Hawaiian Sign Language
- Home school St. Landolin , state-recognized, privately owned Catholic school in Ettenheim
- Helsingin seudun liikenne , transport association in the Helsinki region (Finland)
- Hessian State Statistical Office
- Hispania Lineas Aéreas , Spanish airline (ICAO code)
- University professor
- Hogesnelheidslijn , Belgian and Dutch high- speed routes , see high-speed route #Belgium and high-speed route #Netherlands
- Hormone sensitive lipase
- HSL Logistik , German railway company
- Hue, Saturation, Luminance , a color model, see HSV color space
hsl stands for:
- Hausa Sign Language (ISO-639-3 code)
