| Acronym | Definition |
|---|
| HTT | Head to Toe |
| HTT | Hot to Trot |
| HTT | Hyper-Threading Technology (Intel) |
| HTT | How-to Tip |
| HTT | Hyper Threading Technology |
| HTT | Hyper Text Template |
| HTT | Happy to Translate (UK) |
| HTT | Human Touch Technology |
| HTT | Hypertext Template (Microsoft Windows file extension) |
| HTT | Human Terrain Team |
| HTT | Holier Than Thou |
| HTT | Hyper Transport Technology |
| HTT | Harsco Track Technologies (West Columbia, SC) |
| HTT | Haitian Textile Group |
| HTT | High Throughput Testing (statistics) |
| HTT | High Temperature Tunnel |
| HTT | Houkago Tea Time (band) |
| HTT | Harley Tech Talk (online forum) |
| HTT | Head Thrust Test (clinical test for vestibular organ dysfunction) |
| HTT | Harris Tag and Title (Stevensville, MD) |
| HTT | Home Television Theatre (A/V technology) |
| HTT | Hold That Tiger (song title) |
| HTT | Highly Transportable Terminal |
| HTT | Honda Tuning Team (The Netherlands) |
| HTT | Heat Tempering Tank |
| HTT | Heavy Tactical Transport |
| HTT | Heterojunction Tunneling Triode |