HLL
| Acronym | Definition |
|---|---|
| HLL | High Lift Lever (aviation) |
| HLL | Hindustan Lever Limited |
| HLL | High Level Language |
| HLL | Horizontal Life Line |
| HLL | High Liquid Level |
| HLL | High-Speed, Low-Voltage, Low-power Logic |
| HLL | Helideck Limitations List (aviation safety) |
| HLL | Holmium Laser Lithotripsy |
| HLL | Hayden Lake Library (Hayden, ID) |