| Acronym | Definition |
|---|
| HCl | Hydrochloride |
| HCl | Hardware Compatibility List |
| HCl | Hydrochloric Acid (Hydrogen Chloride) |
| HCl | Harvard College Library (Harvard University) |
| HCl | Hairy Cell Leukemia |
| HCl | Health Care Logistics (est. 1978) |
| HCl | Hitachi Cable Ltd. (Japan) |
| HCl | HashiCorp Configuration Language |
| HCl | Hindustan Copper Ltd. (Kolkata, India) |
| HCl | Hales Corners Lutheran Church (Wisconsin) |
| HCl | Hennepin County Library (Minnesota) |
| HCl | High Cost of Living |
| HCl | Hard Core Logo |
| HCl | Hard Contact Lens |
| HCl | Hindustan Computers Ltd. (India) |
| HCl | Health Center Library (various locations) |
| HCl | Horn Clause Logic (mathematics) |
| HCl | Hindustan Cargo Ltd. (India) |
| HCl | Hummingbird Communications, Ltd. (Canada) |
| HCl | Home Construction Lending |
| HCl | Hockey Club Lugano (Swiss hockey club) |
| HCl | Hockey Club Lugano (Swiss hockey team) |
| HCl | Hellenic Carriers Limited (Jersey) |
| HCl | Hitachi Canada Ltd. |
| HCl | Houston Cole Library (Jacksonville, AL) |
| HCl | Higher Chinese Language |
| HCl | Hawkins Cookers Limited (Thane, India) |
| HCl | Harcourt Connected Learning (Harcourt Education) |
| HCl | Home of Canadian Lotteries (Canadian lotto clearinghouse) |
| HCl | Horizontal Center Line |
| HCl | High Country Lumber (Bishop, CA) |
| HCl | Hierarchy Chart Language |
| HCl | Hydro Carbon Law (Iraq) |
| HCl | Human Capitol Liaison |
| HCl | Hekimian Command Language |
| HCl | Host Control Link |
| HCl | Heinrici Chronicon Livoniae (chronicle of Henry of Livonia; circa 1224-27) |
| HCl | Hezekiah Close of Leigh (motorcycle) |