| HGL | Half Gallon
| Others |
| HGL | Happy Go Lucky
| Others |
| HGL | Hardcore Gamer League
| Others |
| HGL | Hardcore Gaming League
| Others |
| HGL | Harvard Geospatial Library
| Others |
| HGL | Head Grade Line
| Others |
| HGL | Headlight Globe
| Others |
| HGL | Healthy Gay Life
| Others |
| HGL | Heggie Graphics Limited
| Others |
| HGL | Helgoland, Germany
| Others |
| HGL | Helix Gamers League
| Others |
| HGL | Herman G Lane
| Others |
| HGL | Hewlett-Packard Graphics Language image format
| Others |
| HGL | Highlight
| Others |
| HGL | Highlight groups definitions (DN)
| Others |
| HGL | Hofner Green Line
| Others |
| HGL | Hot Gas Layer
| Others |
| HGL | Hp Graphics Language
| Others |
| HGL | Human Gastric Lipase
| Others |
| HGL | Hydraulic Grade Line
| Others |
| HGL | Hydraulic Ground Lift
| Others |
| HGL | Hydrocarbon Gas Liquid
| Others |
| HGL | Hydrocarbon Gas Liquids
| Others |
| HGL | Vector graphics (HP Graphics Language)
| Others |