| Abbreviation | Definition |
|---|---|
| GICOF | General Insurance Corporation of |
| GICR | General Internet Corpus of Russian |
| GICU | General intensive care unit |
| GID | Group IDentification |
| GIF | Graphics Interchange Format |
| GIFE | General Instructions to Field Employees |
| GIG | General Information Guide |
| GIGO | Garbage In Garbage Out |
| GIGO | Gigabite Information Group Organization |
| GIGO | Good Information Good Output |
| GIGO | Good Input Good Output |
| GILH | General Instruction Of The Liturgy Of The Hours |
| GIM | Gnu Image Manipulation |
| GIMP | General Image Manipulation Program |
| GIMP | Green Is My Pepper |
| GIMR | General and Internal Medicine Reviews |
| GIMS | General Internal Medicine for Specialists |
| GINO | Garbage In Nothing Out |
| GIO | General In Out |
| GIOP | General Inter Orb Protocol |