Global Positioning System 
Global Positioning Systems 
Global Positioning Satellite 
Global Position System 
Gunner's Primary Sight 
gallons per second 
Geophysical Processor System 
Global Positioning System 
General Processing Subsystem 
GHz-Peaked Spectrum 
ground power supply 
general practitioners 
Generic Presentation Service 
Geographical Positioning System 
Global Payments System 
Global Position Spotting 
Global Positioning Satellites 
Global Protection System 
Good practices standard 
Ground Power Subsystem 
Ground Processing Simulation 
groundwater protection strategy 
GAIRDNER PRIMARY SCHOOL 
Galong Public School 
Galston Public School 
Ganmain Public School 
Gap, Inc. 
Garah Public School 
Garfield Public Schools 
Gas Pressure Sintering