- Gabbard
- Gabler
- Gabriel
- Gabriles
- Gad
- Gadberry
- Gadbois
- Gadd
- Gaddis
- Gaddy
- Gaden
- Gaecke
- Gaeke
- Gaertner
- Gaetz
- Gafford
- Gafka
- Gage
- Gagliano
- Gahr
- Gain
- Gaines
- Gains
- Gaiser
- Gaitan
- Gajjala
- Galatas
- Galaviz
- Galbraith
- Galbreath
- Galceran
- Galdamez
- Galeano
- Galebreath
- Gales
- Galetin
- Galick
- Galicki
- Galik
- Galinato
- Galindo
- Gall
- Galla
- Gallagher
- Gallardo
- Galle
- Gallegos
- Galley
- Gallien
- Galliford
- Galligan
- Gallo
- Galloway
- Galovic
- Galvan
- Galvez
- Galvin
- Galyon
- Gaman
- Gamarro
- Gamber
- Gamble
- Gamboa
- Gambrel
- Gambrell
- Gamel
- Gamez
- Gammill
- Gammon
- Gan
- Gandara
- Gander
- Gandhi
- Gandy
- Gangemi
- Gann
- Gannaway
- Gannon
- Ganslen
- Gant
- Gantela
- Ganter
- Gantz
- Garay
- Garcia
- Gardere
- Gardes
- Gardner
- Garey
- Garg
- Garibay
- Garic
- Garies
- Garivey
- Garland
- Garlej
- Garner
- Garnett
- Garraud
- Garrelts
- Garrett
- Garrick
- Garriett
- Garrison
- Garrity
- Garside
- Gartner
- Garver
- Garvey
- Garvin
- Gary
- Gary-Walton
- Garza
- Garza-Solis
- Gasaway
- Gashaw
- Gaskill
- Gaskin
- Gaspar
- Gassoway
- Gastler
- Gaston
- Gatenn
- Gates
- Gatewood
- Gatlin
- Gatton
- Gatus
- Gau
- Gauche
- Gaudiano
- Gaulding
- Gaus
- Gauss
- Gauthier
- Gautreaux
- Gavenda
- Gavin
- Gaw
- Gawlik
- Gay
- Gayle
- Gaynor
- Gazaway
- Gazdyszyn
- Gazis
- Gear
- Gearhart
- Geary
- Gebhardt
- Gebhart
- Gedies
- Gee
- Geegan
- Geer
- Gehl
- Gehrels
- Geisendorff
- Geisler
- Geiss
- Geissler
- Geistert
- Geiszler
- Gelber
- Geldmeier
- Geller
- Gendebien
- Gendel
- Gendron
- Genitempo
- Gennity
- Gentempo
- Gentile
- Gentry
- Genzer
- Georgalos
- Georgantas
- George
- Georges
- Georgi
- Georgiadis
- Georgiou
- Gerard
- Gerba
- Gerber
- Gerbino
- Gerbode
- Gerdes
- Gergen
- Gerger
- Gerhardt
- Gerhart
- Gerke
- Gerken
- Gerla
- Germain
- German
- Germann
- Germenis
- Gerner
- Gerold
- Gerow
- Gerri
- Gerry
- Gershen
- Gerson
- Gerstacker
- Gerstner
- Gerych
- Gesink
- Gest
- Gettler
- Getty
- Getz
- Geuder
- Gex
- Geyer
- Ghalamdanchi
- Ghazzaly
- Ghetzler
- Ghods
- Gholkar
- Ghormley
- Ghosh
- Giachini
- Gialamas
- Giancarlo
- Giannantonio
- Giannini
- Giannou
- Gibbon
- Gibbons
- Gibbs
- Giblin
- Gibner
- Gibson
- Gidden
- Giddings
- Gideon
- Giesler
- Giffin
- Gifford
- Gil
- Gilbert
- Gilbertson
- Gilbreath
- Gilcoat
- Gildenberg
- Giles
- Gilford
- Gill
- Gillan
- Gillard
- Gillaspie
- Gille
- Gillebaard
- Gillen
- Gillenwater
- Gillespie
- Gillette
- Gilley
- Gilliam
- Gilliard
- Gillilan
- Gilliland
- Gillman
- Gillmore
- Gillogly
- Gilmore
- Gilmour
- Gilpin
- Gilson
- Gilster
- Gimble
- Ginn
- Ginns
- Gino
- Ginsbach
- Ginsburg
- Giordano
- Giovanella
- Gips
- Gipson
- Girala
- Girkin
- Gist
- Gistald
- Gittelman
- Giuffre
- Giusti
- Givens
- Giza
- Gjertsen
- Gladden
- Gladney
- Gladstone
- Glaeser
- Glandorf
- Glaser
- Glasford
- Glasgow
- Glaspie
- Glass
- Glasser
- Glassman
- Glatman
- Glaves
- Glaze
- Glazzard
- Gleason
- Gleckler
- Glenn
- Glenney
- Glessman
- Glick
- Glickman
- Glisan
- Glodd
- Gloria
- Glosserman
- Glosson
- Gloston
- Glover
- Glowinski
- Gloyna
- Glozer
- Gluckman
- Glugla
- Go
- Goad
- Gobert
- Gobillot
- Godbee
- Goddard
- Godelski
- Godfrey
- Godina
- Godinez
- Godwin
- Godzwon
- Goebel
- Goehring
- Goel
- Goeman
- Goetsch
- Goetz
- Goetzman
- Goeyns
- Goff
- Goffney
- Goforth
- Goggins
- Goin
- Goines
- Goins
- Gold
- Goldapp
- Goldberg
- Goldblatt
- Golden
- Golding
- Goldman
- Goldsberry
- Goldsmith
- Goldstein
- Goldston
- Golick
- Golightly
- Golunski
- Gombar
- Gomes
- Gomez
- Gondo
- Gondron
- Gong
- Gongolas
- Gongora
- Gonsalves
- Gonsoulin
- Gonzales
- Gonzalez
- Gooch
- Good
- Goodale
- Goodbeer
- Goode
- Goodell
- Gooden
- Goodfriend
- Gooding
- Goodman
- Goodpasture
- Goodrich
- Goodrick
- Goodrum
- Goodson
- Goodspeed
- Goodwin
- Goodyear
- Goolsby
- Goot
- Gopalan
- Goranson
- Gorczynski
- Gordinier
- Gordon
- Gordy
- Gorelik
- Goren
- Gorenstein
- Gorewitz
- Gorham
- Gorman
- Gorom
- Gorski
- Gosalia
- Gosey
- Gosnell
- Goss
- Gossett
- Gossin
- Gossom
- Gothard
- Gotsdiner
- Gottlieb
- Goudeau
- Gouge
- Goulas
- Gould
- Govea
- Goveas
- Govreau
- Gower
- Goyal
- Goyette
- Goza
- Grabbe
- Grabowski
- Gracanin
- Grace
- Gracely
- Gracey
- Graczyk
- Gradet
- Gradney
- Grady
- Gradziel
- Graeber
- Graff
- Graham
- Grahmann
- Grall
- Grams
- Granade
- Granadino
- Granberry
- Granell
- Granger
- Granillo
- Grannon
- Granquist
- Grant
- Grantham
- Grass
- Grasty
- Graugnard
- Gravel
- Graves
- Gravis
- Grawl
- Gray
- Graybeal
- Grays
- Grayson
- Grazier
- Greak
- Greaney
- Grear
- Greco
- Greely
- Green
- Greenawalt
- Greenberg
- Greene
- Greenfield
- Greenhill
- Greenleaf
- Greenlee
- Greensage
- Greenwalt
- Greenwell
- Greenwood
- Greer
- Greff
- Gregg
- Greggs
- Gregonis
- Gregor
- Gregorian
- Gregory
- Greiner
- Grembowiec
- Gremillion
- Grenader
- Gresham
- Gressett
- Gresso
- Grice
- Grier
- Grierson
- Griesbach
- Griesenbeck
- Griffin
- Griffis
- Griffith
- Grigg
- Griggs
- Grigorian
- Grijalva
- Grilley
- Grimaldo
- Grimes
- Grimord
- Grimwood
- Grinberg
- Grinblat
- Grindle
- Grindon
- Grinstead
- Grisham
- Griswold
- Grizzaffi
- Grob
- Grobien
- Grochett
- Grochoske
- Groeneman
- Grogan
- Grogin
- Gronsky
- Groomer
- Grooms
- Grose
- Gross
- Grosskreuz
- Grossman
- Grossmann
- Groth
- Grove
- Grover
- Grovey
- Grow
- Growney
- Grubbs
- Grube
- Grubitz
- Gruen
- Gruener
- Gruetzmacher
- Grundmeyer
- Gruner
- Grupa
- Gryder
- Gryska
- Grzelczyk
- Grzenda
- Guajardo
- Guan
- Guarches
- Guardado
- Guardiola
- Guarino
- Guarrine
- Gubera
- Gudino
- Guedin
- Guel
- Guerra
- Guerrero
- Guerry
- Guest
- Guettler
- Guevara
- Guez
- Gugel
- Guhlin
- Gui
- Guido
- Guidry
- Guidy
- Guien
- Guignon
- Guilbeau
- Guillaume
- Guillen
- Guillory
- Guillot
- Guinn
- Guiski
- Guiterrez
- Gulati
- Gulko
- Gullett
- Gundel
- Gundersen
- Gunn
- Gunner
- Gunning
- Gunselman
- Gunter
- Gunther
- Gunzelman
- Gupta
- Guresh
- Gurevich
- Gurka
- Gurrech
- Gurrola
- Gurski
- Gurwitz
- Gusler
- Gustafson
- Gustas
- Gutermuth
- Guthrie
- Guti
- Gutierres
- Gutierrez
- Gutowski
- Gutshall
- Gutta
- Guttman
- Guy
- Guyer
- Guymon
- Guynes
- Guynn
- Guzman
- Gwin
- Gwynn
- Gyorfi
- Gysen