| Acronym | Definition |
|---|
| HCA➣Hospital Corporation of America |
| HCA➣Homes and Communities Agency (UK) |
| HCA➣Hitachi Capital America |
| HCA➣High Court of Australia |
| HCA➣Hans Christian Andersen (author) |
| HCA➣Hierarchical Cluster Analysis (statistics) |
| HCA➣Hydroxycitric Acid |
| HCA➣Health Care Assistant |
| HCA➣Health Care Administration |
| HCA➣Habitat Conservation Area (various locations) |
| HCA➣Health Care Agency |
| HCA➣High Content Analysis |
| HCA➣Human Coronary Artery |
| HCA➣Heidelberg Center for American Studies (University of Heidelberg; Germany) |
| HCA➣Hubbard College of Administration |
| HCA➣Home Care Associates (various locations) |
| HCA➣Helvetica Chimica Acta (Wiley chemistry publication) |
| HCA➣Host Channel Adapter |
| HCA➣High Contrast Addressing |
| HCA➣Hub Clamping Area |
| HCA➣High Consequence Area (oil and gas pipeline industry) |
| HCA➣Hollywood Casino Aurora (Illinois) |
| HCA➣Health Care Analysis (journal) |
| HCA➣Hybrid Cellular Automata (algorithms) |
| HCA➣Head of Contracting Activity |
| HCA➣Humanitarian and Civic Assistance |
| HCA➣Holy Childhood Association (now Missionary Childhood Association) |
| HCA➣Home Care Association of New York State |
| HCA➣Helsinki Citizens' Assembly (Turkey; also seen as HYD) |
| HCA➣Heterocyclic Amine |
| HCA➣Hall-Carpenter Archives (est. 1982; UK) |
| HCA➣Hagley Community Association (UK) |
| HCA➣Hospital Center in Arlington (Arlington, VA) |
| HCA➣Host Country Approval (various locations) |
| HCA➣Hospital Caterers Association (UK) |
| HCA➣Held by Civil Authorities (US Navy) |
| HCA➣Host Channel Adaptor |
| HCA➣Hot Cranking Amps (automobile battery rating) |
| HCA➣House Cleaning Alliance (Denver, CO) |
| HCA➣Hispanic Contractors Association |
| HCA➣Home Care Allowance |
| HCA➣Historic Cost Accounting |
| HCA➣Human Centered Automation (cybernetics) |
| HCA➣Heartland Christian Academy |
| HCA➣Henkel Consumer Adhesives (various locations) |
| HCA➣Housing Corporation Assessment (UK) |
| HCA➣Helideck Certification Agency (UK) |
| HCA➣Handyman Club of America |
| HCA➣Head of Contracting Agency |
| HCA➣Hypertrophic Cardiomyopathy Association (UK; now CMA) |
| HCA➣Houston Communications Alliance |
| HCA➣Harrells Christian Academy (Harrells, NC) |
| HCA➣High-Contamination Area |
| HCA➣Hybrid Channel Allocation |
| HCA➣Hydrometeor Classification Algorithm |
| HCA➣Humanitarian Ceasefire Agreement (Sudan) |
| HCA➣Halifax Christian Academy |
| HCA➣Horizon Christian Academy |
| HCA➣Hochiminh Computer Association (Vietnam) |
| HCA➣Humanitarian and Civic Action Projects |
| HCA➣Hispanic Communicators Association |
| HCA➣Hyperion Certified Administrator (Oracle) |
| HCA➣Hydrographic Commission on Antarctica |
| HCA➣Hazardous Communication Act |
| HCA➣Hanford Contractors' Association |
| HCA➣Hierarchical Constraint Automata (computer programming) |
| HCA➣Hwa Chong Alumni (Singapore) |
| HCA➣Hamilton-Clermont Cooperative Association |
| HCA➣Hermit Crab Association (est. 2001) |
| HCA➣Hummer Controlled Approach |
| HCA➣Hockey Club des Aravis (French hockey club) |