GB
- ABX Air
- BG (disambiguation)
- Beechcraft GB Traveler
- G-flat major
- GB (footballer)
- GB 18030
- GB 2312
- GB Airways
- GB Glace
- GB News
- GB PGB
- GB Supermarkets
- GB-1
- GBS (disambiguation)
- Gain–bandwidth product
- Game Boy
- Games behind
- Ganglion blocker
- Gardner Bender
- Gazerbeam
- Gb (digraph)
- Gigabase
- Gigabit
- Gigabyte
- Gigabyte (disambiguation)
- Gilbert (unit)
- Gilgit-Baltistan
- Girls' Brigade
- Goin' Bulilit
- Government and binding theory
- Grande Bibliothèque
- Great Barrington, Massachusetts
- Great Britain
- Great Britain at the Olympics
- Green Bay Packers
- Green Bay, Wisconsin
- Griesedieck Brothers beer
- Group buying
- Guillain–Barré syndrome
- Guinea-Bissau
- Guobiao standards
- Guy Bomford
- G♭ (musical note)
- Kingdom of Great Britain
- Sarin
- Steyr GB
- United Kingdom
- University of Wisconsin–Green Bay
- Voiced labial–velar plosive