| Acronym | Definition |
|---|
| IHT | International Herald Tribune (newspaper) |
| IHT | Inheritance Tax (UK) |
| IHT | Instituto Hondureño de Turismo (Spanish: Honduran Institute of Tourism) |
| IHT | In-Home Therapy |
| IHT | Incident Handling Team |
| IHT | Iraqi High Tribunal (court) |
| IHT | Imperial Hotel, Tokyo (Tokyo, Japan) |
| IHT | Institution of Highways & Transportation (UK) |
| IHT | In-House Training |
| IHT | Intermittent Hypoxic Training (altitude simulation) |
| IHT | Iron Horse Trail (California) |
| IHT | Ideal Handler Time |
| IHT | I Hate This |
| IHT | I'd Hit That |
| IHT | Intermediate Handling Test (Royal Air Force pilot training) |
| IHT | Innovative Home Theaters, Inc (Orlando, FL) |