| Abbreviation | Definition |
|---|---|
| GCPD | Garden City Police Department |
| GCPD | Gibson City Police Department |
| GCPD | Gotham City Police Department |
| GCPSU | General Command of Police Special Units |
| GCPSU | General Command of Police Unite |
| GCSO | Grayson County Sheriff's Office |
| GCSO | Greenlee County Sheriff’s Office |
| GCSO | Greenlee County Sheriffs Office |
| GD | Gangster Disciples |
| GDBP | General Directorate Border Police |
| GDL | Good Driving License |
| GDN | Gangster Disciple Nation |
| GDN | Gangster Disciples Nation |
| GET | Gang Enforcement Team |
| GF | God Father |
| GFSU | Gujarat Forensic Sciences University |
| GGDEU | Guns, Gangs, and Drug Enforcement Unit |
| GIDH | Good In Da Hood |
| GKN | Gerebek Kampung Narkoba (in Indonesian) Gerebek Kampung Drugs |
| GKY | Go Kill Yourself |