| Acronym | Definition |
|---|
| HLT | Health (usually abbreviated as HLTH) |
| HLT | Halt |
| HLT | Humanising Language Teaching (journal) |
| HLT | Human Language Technology |
| HLT | Human Language Technologies |
| HLT | High Level Trigger |
| HLT | Highly Leveraged Transaction (financial term) |
| HLT | Hurricane Liaison Team (US FEMA) |
| HLT | High Level Test (software engineering) |
| HLT | Heart-Lung Transplant |
| HLT | Home Linking Technology |
| HLT | Hospitality, Leisure & Tourism |
| HLT | Houlton, Maine (border patrol sector) |
| HLT | Hospital Leadership Team (San Francisco, CA) |
| HLT | Hot Liquor Tun (brewing) |
| HLT | Heavy Laser Tower (gaming |
| HLT | Hungarian Local Time |
| HLT | Home Line Tryout (automotive industry) |
| HLT | Hilltown Land Trust (land conservation; Huntington, MA) |
| HLT | High-Level Terminal |