| Acronym | Definition |
|---|
| GK | Greek |
| GK | General Knowledge |
| GK | Goalkeeper |
| GK | Gawad Kalinga (Filipino: Give Care) |
| GK | Gatekeeper |
| GK | Gamma Knife (radiosurgery) |
| GK | Guernsey |
| GK | Gry Komputerowe (Polish: Computer Games) |
| GK | Goal Kick |
| GK | Garry Kasparov (chess player) |
| GK | Grand Knight (head of VKV fraternity, Philippines) |
| GK | Glucokinase |
| GK | Gupta-Kumar (network routing) |
| GK | Gabriel Knight (computer game) |
| GK | Godo Kaisha (Japan) |
| GK | Gravekeeper (YuGiOh cards) |
| GK | Golden Key International Honour Society |
| GK | Grunnkurs (foundation course) |
| GK | Ginger Kid |
| GK | Green Key |
| GK | Gravity Kills (band) |
| GK | Global Kids, Inc (New York, New York) |
| GK | Good Kill (video gaming) |
| GK | Genesis Knights (gaming clan) |
| GK | Great Khali (wrestler) |
| GK | Guantanamo to Key West (routing designation; US Navy) |
| GK | Garage Kids (cartoon) |
| GK | Golden Keshik (gaming) |
| GK | Gallien-Krueger, Inc. |
| GK | Gerichtskasten (German: Pigeon-Hole; law firms) |