| Acronym | Definition |
|---|
| LTH | Lunds Tekniska Högskola (University in Lund, Sweden) |
| LTH | Low to High (Blu-ray Disc) |
| LTH | Lithuanian (language) |
| LTH | Lembaga Tabung Haji (Malay: Fund Board) |
| LTH | Lethality (gaming clan) |
| LTH | Learn to Hunt (Wisconsin) |
| LTH | Lactogenic Hormone |
| LTH | Length Field |
| LTH | Left Hand Thread |
| LTH | Luteotropic Hormone |
| LTH | Leeds Teaching Hospital (primary care trust; UK) |
| LTH | Legal Title Holder |
| LTH | Link Theory Holdings (fashion retail; Japan) |
| LTH | Light Towed Howitzer |
| LTH | Lepidoptera of Thailand |
| LTH | Little Three Happiness (Chinese restaurant, Chicago, Illinois) |
| LTH | Licenciaat in de Tandheelkunde (Dutch: Degree in Dentistry; Belgium) |
| LTH | Licence in Theology (academic qualification) |
| LTH | La Tyrie Héroïque (online game guild) |
| LTH | Linear Time Heuristic (Algorithm) |
| LTH | Letters to Home (band) |
| LTH | Launcher Transport Head |
| LTH | Lethality & Target Hardening |
| LTH | Linearized Time-Dependent Hartree |
| LTH | Love, Truth, and Honor (Sigma Nu International Fraternity) |