| Acronym | Definition |
|---|
| HMC | Hosted Messaging and Collaboration |
| HMC | Horizontal Machining Center |
| HMC | Hoffman Modulation Contrast |
| HMC | Hybrid Monte Carlo |
| HMC | Royal Commission on Historical Manuscripts |
| HMC | Hurley Medical Center (Flint, Michigan) |
| HMC | Howitzer Motor Carriage |
| HMC | Halley Multicolor Camera |
| HMC | Hyundai Motor Corporation |
| HMC | Highspeed Memory Controller |
| HMC | Hyderabad Municipal Corporation (Pakistan) |
| HMC | Hoosier Motor Club (AAA) |
| HMC | Hygroscopic Moisture Content |
| HMC | Homemade Crap (Finnish indie-movie group) |
| HMC | Heterogeneous Multicast |
| HMC | Hydrogen Master Clock |
| HMC | High Mobility Camouflage |
| HMC | Holonic Manufacturing Consortium |
| HMC | Honda Motor Corp Ltd (stock symbol) |
| HMC | Hoyle Majestic Chess (video game) |
| HMC | Hard Minerals Committee |
| HMC | His/Her Majesty's Customs |
| HMC | Historical Marginal Cost |
| HMC | Hundred Million Club |
| HMC | Heroin, Morphine, and Cocaine mixture |
| HMC | Heavy Medium Cyclone |
| HMC | HEED (Health, Education and Economic Development) Media Center (Bangladesh) |
| HMC | Hidden Markov Channel |
| HMC | Hextable Methodist Church (UK) |
| HMC | High Maintenance Chick |
| HMC | Home Manufacturers Council of NAHB (National Association of Home Builders) |
| HMC | Harmonie Municipale de Chevrières (French) |
| HMC | Hit My Cell |
| HMC | Health Management Corporation, Inc (Richond, VA) |
| HMC | Homage to Catalonia (George Orwell book) |
| HMC | Headmasters' and Headmistresses' Conference (UK trade association) |
| HMC | Hair Moisturizing Complex (Soft & Beautiful) |
| HMC | Hendrick Medical Center (Abilene, TX) |
| HMC | Halifax Medical Center |
| HMC | Holy Mother Church |
| HMC | Hitachi Medical Corporation (Tokyo, Japan) |
| HMC | Harvard Model Congress (est. 1986; government simulation; various locations) |
| HMC | Hunterdon Medical Center (Flemington, NJ) |
| HMC | Hittite Microwave Corporation (Chelmsford, MA) |
| HMC | Halifax Metro Centre (Halifax, Nova Scotia, Canada) |
| HMC | Hartz Mountain Corporation (New Jersey) |
| HMC | Harborview Medical Center (Seattle, Washington) |
| HMC | Hawk Mountain Council (Pennsylvania; Boy Scouts of America) |
| HMC | Harvard Management Company |
| HMC | Home Media Center |
| HMC | Home Mortgage Consultant (Wells Fargo) |
| HMC | Hospitality Marketing Consultants (Newport Beach, CA) |
| HMC | Hamad Medical Corporation (Doha, Qatar) |
| HMC | Heritage Motor Centre (British Motor Industry Heritage Trust; UK) |
| HMC | High Modulus Carbon |
| HMC | Hawthorne Machinery Co. (California) |
| HMC | Halal Monitoring Committee (UK) |
| HMC | Henley Management College (UK) |
| HMC | Hardware Management Console for pSeries (IBM) |
| HMC | Hayatabad Medical Complex (Peshawar, Pakistan) |
| HMC | Herter Music Center (Bay City, Michigan) |
| HMC | Chief Hospital Corpsman (Navy Designation Rating) |
| HMC | Heavy Mechanical Complex (pvt) Ltd. (Taxila, Pakistan) |
| HMC | Historical Manuscripts Commission (UK) |
| HMC | Harvey Mudd College (Claremont, CA) |
| HMC | Hold Me Close |