- Gaa
- Gabler
- Gabor
- Gabriel
- Gaitan
- Galaviz
- Galgano
- Galindo
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- Gallau
- Gallegos
- Gallinat
- Gallis
- Gallo
- Galvan
- Galvez
- Gamberg
- Gamino
- Gammill
- Gandara
- Gandel
- Gangar
- Ganguly
- Gano
- Gans
- Ganter
- Garbagnati
- Garboske
- Garces
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- Gardner
- Garimella
- Garlick
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- Garrett
- Garrido
- Garrison
- Garthwait
- Garvey
- Gary
- Garza
- Gasich
- Gaspar
- Gasper
- Gatfield
- Gauci
- Gaudin
- Gaul
- Gauthier
- Gautreau
- Gauvin
- Gavali
- Gazzera
- Geary
- Gease
- Gee
- Gehman
- Gektin
- Gemo
- Gemoll
- Gengarella
- Gensley
- Gentert
- Gentile
- George
- Gerarge
- Gerdt
- Gerke
- Gerlach
- Geroge
- Gerould
- Gerrells
- Gerstley
- Gerula
- Gerwe
- Gesso
- Gettu
- Ghantiwala
- Ghazaleh
- Ghori
- Giacinto
- Giacomazzi
- Giang
- Giannini
- Gibbons
- Gibson
- Gicale
- Giertych
- Gilbert
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- Gill
- Gillam
- Gilleland
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- Gillis
- Gilman
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- Giovanola
- Gip
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- Girard
- Giraudo
- Giridharan
- Girman
- Glass
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- Gleed
- Gleixner
- Glenn
- Gliever
- Glimski
- Glines
- Gliozzo
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- Glover
- Go
- Goble
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- Goldberger
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- Gomes
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- Gonzalez
- Goode
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- Greenberg
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