G.P.
GP14 (dinghy)
Gplay
GPM (software)
G-Police
GPotato
GPR143
G protein
GPRS Tunnelling Protocol
GPS augmentation
GpsDrive
GPS eXchange Format
GPS for the visually impaired
Gpsim
GPS in the Earthmoving Industry
GPS wildlife tracking
GPUTILS
GPX4
GPXE