HCL

HCL may refer to:

Science and medicine

 * Hairy cell leukemia, an uncommon and slowly progressing B cell leukemia
 * Harvard Cyclotron Laboratory, from 1961 to 2002, a proton accelerator used for research and development
 * Hollow-cathode lamp, a spectral line source used in physics and chemistry
 * Hydrochloric acid, a solution of hydrogen chloride in water
 * Hydrochloride, the salt of hydrochloric acid and an organic base
 * Hydrogen chloride, chemical formula HCl
 * Hypomania Checklist, a questionnaire used to screen for hypomania and bipolar spectrum disorders
 * HCL color space, a color space model designed to accord with human perception of color

Computing

 * Hardware compatibility list
 * HashiCorp Configuration Language, a configuration language authored by HashiCorp, used by cloud infrastructure automation tools, such as Terraform.

Organizations

 * HCLTech, an IT outsourcing firm based in Noida, India
 * HCL Axon, a subsidiary of HCL Technologies


 * Hennepin County Library
 * Hindustan Cables Limited, an Indian cable manufacturer
 * Harvard College Library
 * HC Lugano, a Swiss professional ice hockey team based in Lugano
 * Honolulu Control Facility, an air traffic control facility
 * Horizon Coach Lines, an American bus company