| Abbreviation | Definition |
|---|---|
| GCMG | Global Credit Management Group |
| GCMO | Global Change Management Office |
| GCMO | Global Collateral Management Operations |
| GCMP | Global Cooperative Management Program |
| GCMP | Guam Coastal Management Program |
| GCMS | Generic Color Management System |
| GCMS | Generic Colour Management System |
| GCMS | Global Card Management System |
| GCMS | Global Case Management System |
| GCMT | Graphic Communications Management and Technology |
| GCRM | Global Client Relationship Management |
| GCRM | Global Credit Risk Management |
| GDM | Gylling Data Management |
| GDMC | Geo Database Management Center |
| GDMC | Geo Database Management Centre |
| GDMM | General Directorate for Migration Management |
| GDMM | Graduate Diploma in Materials Management |
| GDMT | Guideline Directed Management and Therapy |
| GDPM | Goal Directed Project Management |
| GDPM | Graduate Diploma in Project Management |