| G | Grin | - | Chemistry |
| G | Giga (Billion) | - | Organizations |
| G | Gravity | - | Organizations |
| G | Units Of Gravitational Force | - | Organizations |
| G | IWG Ground Interface Working Group | - | Organizations |
| G | LOW Gross Lift-Off Weight | - | Organizations |
| G | LOW Ground Lift-Off Weight | - | Organizations |
| G | CCC Ground Control Computer Center | - | Organizations |
| G | F&PGases | - | Organizations |
| G | Grin | - | Sms Text Smileys and Emoticons |
| G | Giggle | - | ISO Country Codes |
| G | Grin | - | ISO Country Codes |
| G | Guess | - | ISO Country Codes |
| G | CSF -Granulocyte Colony-Stimulating Factor | - | Astronomy |
| G | Gauss | - | Astronomy |
| G | Gram | - | Astronomy |
