GSL
- GNU Scientific Library
- Gaius Salvius Liberalis
- Gambian Sign Language
- Game System License
- General Service List
- General sales list
- Geological Society of London
- Georgia State League
- Georgian Sign Language
- German Sign Language
- Ghana School of Law
- Ghandruk Sign Language
- Global StarCraft II League
- Global Super League
- Glycosphingolipid
- Goa Shipyard Limited
- Gold Standard Laboratories
- Govan Shipbuilders
- Great Salt Lake
- Greek Sign Language
- Guam Soccer League
- Gunnislake railway station
- Scout group
- Taltheilei Narrows Airport