| Acronym | Definition |
|---|
| OHT | Ocean Heat Transport (climate) |
| OHT | One Hand Tool (Leatherman pocket knive) |
| OHT | Oral Health Therapist |
| OHT | Office for a Human Theatre |
| OHT | Ocular Hypertension |
| OHT | One Hand Trekker (Victorinox) |
| OHT | Open Health Tools (open-source consortium; Asheville, NC) |
| OHT | Ozark Highlands Trail |
| OHT | Oregon Healthy Teens |
| OHT | Overhead Hoist Transport (manufacturing) |
| OHT | Omron Healthcare Taiwan (healthcare devices) |
| OHT | Offshore Heavy Transport |
| OHT | Over Head Transmission |
| OHT | One Horse Town |
| OHT | Orthotopic Heart Transplant |
| OHT | One Handed Typing |
| OHT | Okano Hightech Co., Ltd. (Japan) |
| OHT | Overhead Projector Transparency |
| OHT | On Harvard Time (On-line comedy news show) |
| OHT | One Hour Translation (New York, NY; est. 2007) |
| OHT | Over Head Transport |
| OHT | Orchestre d'Harmonie de Troyes |
