| Acronym | Sense | Language | Topics |
|---|---|---|---|
| GC | Gas Chromatography | In English | |
| GC | Gyrocompass | In English | |
| GC | Gimbal Case | In English | → Astronautics |
| GC | Ground Computer | In English | → Computer hardware |
| GC | Ground Contact | In English | |
| GC | Ground Control(ler) | In English | |
| GC | Guidance Computer | In English | → Computer hardware |
| GC | Guidance Control | In English | |
| GC | Génie Civil | In French | → Civil engineering → Construction |
| GC | Gestionnaire Comptable | In French | → Accounting |
| GC | Geneva Convention = CG | Convention de Genève | In French |
In English | → International law |