This is a list of surnames in which the usage is Belgian; and the first letter is G.
Gage French, EnglishOccupational name derived either from Old French
jauge "measure" (a name for an assayer) or
gage "pledge, payment" (a name for a moneylender). Both words were ultimately of Frankish origin.
Gagneux FrenchDerived from Old French
gagnier meaning
"to farm, to cultivate".
Giffard French, EnglishPossibly from Old French
gifart meaning
"chubby" or possibly from the Germanic name
Gebhard. Walter Giffard was one of the Norman companions of William the Conqueror.
Granger English, FrenchMeans
"farm bailiff" from Old French
grangier, ultimately from Latin
granum meaning "grain". It is borne in the Harry Potter novels by Harry's friend Hermione Granger.
Gros FrenchMeans
"thick, fat, big" in French, from Late Latin
grossus, possibly of Germanic origin.