| OHT | Kohat, Pakistan 
| Others |
| OHT | Oak Hill Technology
| Others |
| OHT | Oak Hills Terrace
| Others |
| OHT | Ocular Hypertension Treatment
| Others |
| OHT | OECD Harmonised Templates
| Others |
| OHT | Off Highway Tire
| Others |
| OHT | Off Highway Truck
| Others |
| OHT | Office of Health Transformation
| Others |
| OHT | Offshore Heavy Transport
| Others |
| OHT | Oficial Hookah Time
| Others |
| OHT | Ohio History Teachers
| Others |
| OHT | Ohr HaTorah
| Others |
| OHT | Oil Heat Treatment
| Others |
| OHT | Old Hickory Tannery
| Others |
| OHT | One Hand Tool
| Others |
| OHT | One Handed Tool
| Others |
| OHT | One Handed Typing
| Others |
| OHT | One Hour Translation
| Others |
| OHT | Ontario Health Team
| Others |
| OHT | Open Health Tools
| Others |
| OHT | Operation Hat Trick
| Others |
| OHT | Oral History Technique
| Others |
| OHT | Oral Hydration Therapy
| Others |
| OHT | Oregon Healthy Teens
| Others |
| OHT | Organization of History Teachers
| Others |
| OHT | Orthotopic Heart Transplant
| Others |
| OHT | Orthotopic Heart Transplantation
| Others |
| OHT | Over Head Tank
| Others |
| OHT | OverHead Transparency
| Others |
| OHT | Overheat
| Others |
| OHT | Oxford Historical Treaties
| Others |
| OHT | Ozark Highlands Trail
| Others |