HCA

• Brilliant (diamond cut)
• HC Andersen (band)
• Hall–Carpenter Archives
• Healthcare Assistant
• Heidelberg Center for American Studies
• Helsinki Citizens' Assembly
• Hennepin Center for the Arts
• Heritage Christian Academy (Fort Collins, Colorado)
• Heritage Christian Academy (Kansas)
• Heritage Christian Academy (Minnesota)
• Heritage Christian Academy (New Jersey)
• Heritage Christian Academy (Texas)
• Heritage Christian Academy (disambiguation)
• Heritage Crafts Association
• Heterocyclic amine
• Hexachloroacetone
• Hierarchical cluster analysis
• High Court of Australia
• High content analysis
• Hillcrest Christian Academy
• Historical cost accounting
• Holy Child Academy
• Homes and Communities Agency
• Hopkins Consulting Agency
• Hospital Corporation of America
• Host Channel Adapter
• Hydroxycitric acid
• car battery