| Abbreviation | Definition |
|---|---|
| GAY | Gates And Young |
| GB | Gun Broker |
| GBC | Green Brook Crew |
| GBH | Grievous Bodily Harm |
| GBI | GA Bureau of Investigation |
| GBI | Great Bodily Injury |
| GBI | Guilty But Insane |
| GBLD | Global Banking Law Database |
| GBTZ | Go Back to Zero (GBtZ) - An exclusive 'creation' based mathematical & scientific relativity expressi |
| GC | Grandfather Clause |
| GC | Grasp Corpus |
| GCB | Global Corruption Barometer |
| GCC | Gas Chamber Crew |
| GCCT | Georgia Court Competency Test |
| GCCT-MSH | Georgia Court Competency Test - Mississippi State Hospital |
| GCFR | Grand Criminal Of The Federal Republic |
| GCIC | Georgia Crime Information Center |
| GCIC | Georgia Crime Investigation Center |
| GCK | Good Clean Killing |
| GCLAHR | Global Council for Law Arbitration and Human Rights |