| Abbreviation | Definition |
|---|---|
| GCAT | Government Contracting Advisory Team |
| GCC | General Chiropractic Council |
| GCCA | Georgia Christian Counselors Association |
| GCCA | Greater Cincinnati Counseling Association |
| GCCT | Grand Cross of Color Team |
| GCCTR | Grand Cross of Color Team Report |
| GCEL | Global Coalition for Efficient Logistics |
| GCLB | Genesee County Local Businesses |
| GCLB | German Chinese Lifescience and Biotechnology Association |
| GCLB | Guam Contractors License Board |
| GCMS | Genesee County Medical Society |
| GCPA | Georgia Council of Professional Archaeologists |
| GCPA | Gulf Coast Paralegal Association, Inc. |
| GCSP | Geneva Centre for Security Policy |
| GDCO | Global Design Cities Organization |
| GDG | Google Deveolpers Group |
| GEAR | General Examination and Assessment Regulations |
| GECE | Global Energy Consulting Engineers |
| GEF | Global Environment Facility |
| GEF | Global Environmental Facility |