- Gaab
- Gaade
- Gaaf
- Gaal
- Gaan
- Gaasbeek
- Gaastra
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- Gabar
- Gabarda
- Gabay
- Gabbert
- Gabe
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- Gabela
- Gabelic
- Gaber
- Gabert
- Gabes
- Gabi
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- Gabr
- Gabra
- Gabriel
- Gabriela
- Gabriels
- Gabrielse
- Gabrielson
- Gabry
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- Gabunia
- Gacel
- Gacem
- Gach
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- Gad
- Gadalla
- Gaddi
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- Gaddum
- Gade
- Gadea
- Gadella
- Gader
- Gadet
- Gadgil
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- Gadir
- Gadsdon
- Gaebler
- Gaedtke
- Gaertner
- Gaeta
- Gaetano
- Gafar
- Gafaro
- Gaff
- Gaffar
- Gafo
- Gafoor
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- Gage
- Gagel
- Gagg
- Gaggia
- Gagliano
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- Gagnon
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- Gahler
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- Gaier
- Gaiga
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- Gailliaert
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- Gaiser
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- Gala
- Galac
- Galacho
- Galagan
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- Galan
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- Galani
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- Galano
- Galante
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- Galarraga
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- Galbraith
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- Galea
- Galeano
- Galema
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- Galli
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- Galliford
- Galligan
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- Gallman
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- Gallo
- Gallois
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- Galluzzi
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- Galman
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- Gamez
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- Gante
- Ganter
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- Ganz
- Ganzevoort
- Gao
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- Gaoui
- Gaprindashvili
- Gar
- Garabedian
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- Garaj
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- Gawel
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- Gaxiola
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- Gaza
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