HCL
HCL stands as an abbreviation for:
- Hairy cell leukemia , see hairy cell leukemia
 - Hardware Compatibility List
 - Hardware Control Language , a programming language
 - HC Leipzig , a women's handball club
 - HC Lugano , an ice hockey club
 - Helenair Caribbean , a former St. Lucia airline
 - Hindustan Computers Limited , see HCL Technologies , Indian IT services company
 - Hot Club Leipzig , a former jazz club
 - Human Centric Lighting , a lighting concept for interiors
 
HCl stands for:
- Hydrogen chloride , chemical molecular formula