| Term | Full Form | Category |
|---|---|---|
| GC/CT | Gonorrhea and Chlamydia Screening Test | Others |
| GCCT | Generalized Composite Commodity Theorem | Others |
| GCCT | Georgia Court Competency Test | Others |
| GCCT | Geriatrics Core Curriculum Track | Others |
| GCCT | Glacier Credit Card Trust | Others |
| GCCT | Gladwin City/County Transit | Others |
| GCCT | Gloucester Credit Card Trust | Others |
| GCCT | Goshen County Community Theater | Others |
| GCCT | Grand Cross of Color Team | Others |