| 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) |
