HHC

• HHC Hardenberg
• HMS Hedingham Castle
• HNNK Hrvat Chicago
• HWA Heavyweight Championship
• Hague Hijacking Convention
• Hai Ha Confectionery
• Haida Heritage Centre
• Haldimand-Norfolk Housing Corporation
• Hand Held Computer
• Happy Happy Clover
• Happy Harbor Comics
• Harborside Health Center
• Hare–Hawes–Cutting Act
• Harlem History Club
• Harlem Hospital Center
• Harriet's Halloween Candy
• Harrison HPER Complex
• Havant Hockey Club
• Havering Hockey Club
• Hawaii Health Connector
• Head Hits Concrete
• Headquarters and Headquarters Company (United States)
• Hendricks Holding Company
• Hereditary hemochromatosis
• Hill hold control
• Hip Hop Congress
• Hip Hop Connection
• Hispanic Health Council
• Hungarian Helsinki Committee
• New York City Health and Hospitals Corporation