| Abbreviation | Definition |
|---|---|
| GLE | Grade Level Equivalency |
| GLO | GCA (GAC Corporate Academy) Liaison Officer |
| GLTAH | Global Labeling Therapeutic Area Head |
| GLUE | Grade Level Union Executive |
| GLW | Good Lady Wife |
| GM | Gaffe Monger |
| GM | Games Moderator |
| GM | Garbage Mover |
| GM | General Management |
| GM | General Manager |
| GM | Gentle Men |
| GM | Gold Master |
| GM | Good Mate |
| GM | Grand Matriarch |
| GM | Guild Mistress |
| GMD | General Materials Designator |
| GMDB | Guaranteed Minimum Death Benefit |
| GMIM | Global Marketing and Innovation Management |
| GMO | General Medical Officer |
| GMP | General Medical Practitioner |