| Acronym | Definition |
|---|
| HTW | Heal the World |
| HTW | Herron Todd White (property valuation; Australia) |
| HTW | Honduras This Week Online (newspaper) |
| HTW | How Things Work |
| HTW | Hug the World |
| HTW | Hello the World |
| HTW | High Temperature Water |
| HTW | Height to Weight (proportion) |
| HTW | Hazardous and Toxic Waste |
| HTW | How's the Weather? |
| HTW | Historic Third Ward (various meanings) |
| HTW | Honky Tonk Woman (song) |
| HTW | Harrison Troughton Wunderman |
| HTW | Halfway to Winter (band) |
| HTW | Hunt the Wumpus (game) |
| HTW | Hot Trophy Wife |
| HTW | Hip to Waist (fitness and health ratio) |
| HTW | Hide the Wiener |
| HTW | Hack the World |
| HTW | Hard Target Weapon |
| HTW | Heat-Treated Wood |
| HTW | Harmonize the World (Sweet Adelines International) |
| HTW | Hylaean Theoric World |
| HTW | Hochschule fur Technik und Wirtschaft Berlin (German: University for Applied Sciences Berlin; Berlin, Germany) |