HSL

HSL may refer to:

Science, technology and computing

• HSL (Fortran library), a numerical software library
• HSL and HSV color space
• Health and Safety Laboratory, UK
• Hormone-sensitive lipase, a protein
• Hybrid solar lighting

Transport

• Bell HSL, a 1950s U.S. Navy antisubmarine helicopter
• Haslemere railway station in England
• Helsinki Regional Transport Authority (Helsingin seudun liikenne), in Finland
• High-speed launch, a type of military boat typically used for air-sea rescue operations
• Hindustan Shipyard, in Visakhapatnam, Andhra Pradesh, India
• Hispania Líneas Aéreas, a defunct Spanish airline
• HSL Logistik, a German train operator
• Huslia Airport, in Alaska, US
• High-speed rail lines in Benelux HSL 1, HSL 2 HSL 3 HSL 4, and HSL-Zuid
• HSL-34 to HSL-94: Former US Navy helicopter Anti-submarine (Light) squadrons

Other uses

• Hausa Sign Language, Kano, Nigeria
• Hawaiʻi Sign Language, Hawaii, United States
• Hamburg School of Logistics, now Kühne Logistics University, Germany
• Staff Selection Commission Combined Higher Secondary Level Exam or CHSL/HSL, civil service examination by the Staff Selection Commission for governmental posts in India