| Acronym | Definition |
|---|
| MDHC➣Mersey Docks and Harbour Company (Liverpool, UK) |
| MDHC➣Marion Downs Hearing Center (University of Colorado Hospital) |
| MDHC➣Maison des Droits de l'Homme du Cameroun (French: House of Human Rights in Cameroon; Africa) |
| MDHC➣Morecambe and District Hockey Club |
| MDHC➣Maryland Hardcore (music movement) |
| MDHC➣Main Deck Hatch Closed and Dogged |
| MDHC➣McKay Dee Hospital Center (Ogden, Utah) |