| Acronym | Definition |
|---|
| OHD | Outlook Help Desk |
| OHD | Optical Hard Drive |
| OHD | Off Hook Delay |
| OHD | Office of Hydrologic Development (US NOAA) |
| OHD | Oregon Health Division |
| OHD | Overhead Door |
| OHD | Old High Denomination (bank notes) |
| OHD | Oh Happy Day (song) |
| OHD | Organic Heart Disease |
| OHD | Ohrid, Macedonia - Ohrid (Airport Code) |
| OHD | Off-Hook Delay |
| OHD | Oxnard Harbor District (Canada) |
| OHD | Orascom Hotel and Development (Cairo, Egypt) |
| OHD | Over-the-Horizon Detection |
| OHD | Obsessive Highlighting Disorder |
| OHD | Online Hard Drive |
| OHD | Obsessional Hyclic Disorder (psychology) |