| Acronym | Definition |
|---|
| HTU➣Hydrothermal Upgrading (energy development) |
| HTU➣Handheld Terminal Unit |
| HTU➣Hundreds, Tens and Units (mathematics) |
| HTU➣Hate You |
| HTU➣Helicopter Training Unit (US Navy aviation unit designation used in from 1950 to 1957) |
| HTU➣Hydrodynamic Test Unit |
| HTU➣How to Universe |
| HTU➣Hispanic Theological Union |
| HTU➣HDSL Terminal/Transmission Unit |
| HTU➣Handheld Thermal Unit |
| HTU➣Hourly Thermal Unit |
| HTU➣Huston-Tilostson University (Austin, TX) |