| Acronym | Meaning |
 | GM | Gaseous Mixture |
 | GM | Geometric Mean |
 | GMAL | General Electric Macro Assembly Language |
 | GMBL | Gimbal |
 | GMCL | Ground Measurements Command List |
 | GMIL | SpGMILSpaceffight Tracking And Data Network (STDN) |
 | GML | GeGMLGeneral Measurement Loop |
 | GMMC | GrGMMCGround Master Measurements List |
 | GMN | GoGMNGorman (TACAN Station) |
 | GMT | GrGMTGreenwich MeanTime |
 | GMT | Greenwich Mean Time |
 | GN | GaGN Gain |
 | GN&C | GuGN&CGuidance |
 | GN&C | Guidance |
 | GN2 | GaGN2Gaseous Nitrogen |
 | GN2 | Gaseous Nitrogen |
 | GNC | GuGNCGuidance And Navigation COmPuter |
 | GNCFTS | GNGNCFTSGN&C Flight Test Station |
 | GNCIS | GNGNCISGN&C Integration Simulator |
 | GNCS | GuGNCSGuidance And Navi-oation Control System |
 | GNCTS | GNGNCTSGN&C Test Station |
 | GND | GrGNDGround |
 | GND | C/0 GrGND C/0 Ground Checkout |
 | GNP | GrGNPGross National Product |
 | GO | GeGO General Order |
 | GO2 | Gaseous Oxygen |
 | GOAL | GrGOALGround Operations Aerospace Language |
 | GOC | GrGOCGround Operations Coordinator |
 | GOCA | GrGOCAGround Operations Control Area |
 | GOE | GrGOEGround Operating EquiPMent |
 | GOES | GeGOESGeostationary Operational Environment Satellite |
 | GOM | KSGOMKSC Ground Operations Manager At DFRC Or WSMR |
 | GOMMS | GrGOMMSGround Operations And Material Management System |
 | GOMS | GrGOMSGround Operations Management System |
 | GOP | GrGOPGround Operations Panel |
 | GOPG | GrGOPGGround Operations Planning Group |
 | GOR | GrGORGround Operations Review |
 | GORP | GrGORPGround Operations Requirements Plan |
 | GORS | GrGORSGround Observer RF System |
 | GOSS | GrGOSSGround Operations Support System |
 | GOWG | GrGOWGGround Operations Working Group |
 | GOX | GaGOXGaseous Oxygen (GO |
 | GP | GeGP General Publication (RSC) |
 | GP | General Purpose |
 | GP | Group |
 | GPA | General Purpose Amplifier |
 | GPAS | General PurPose Airborne Simulator |
 | GPBIM | General Purpose Buffer Interface Module |
 | GPC | Gel Permeation Chromatograph |
 | GPC | General Purpose Computer |