GK
- G. K. Chesterton
- GK (art director)
- GK Barry
- Gadobangkong railway station
- Gallien-Krueger
- Gawad Kalinga
- Geilenkirchen
- Glucokinase
- Glycerol kinase
- Goalkeeper
- Goalkeeper (association football)
- Goalkeeper (water polo)
- Graham-Kapowsin High School
- Greater Kailash
- Guernsey
- Guntur Kaaram
- Gōdō gaisha
- Handball goalkeeper
- Jetstar Japan
- Rules of netball
- Society for Orthodontic Dental Technology
- Vegas Golden Knights