- Gabhart
- Gadberry
- Gaines
- Galer
- Galka
- Gall
- Gallagher
- Galloway
- Galvan
- Gangle
- Gann
- Garboden
- Garcia
- Gardener
- Gardner
- Gariepy
- Garner
- Garoutte
- Garrett
- Garstecki
- Garver
- Gary
- Gaskill
- Gay
- Gedeon
- Gee
- Geertsen
- Gehr
- Gelskey
- Gent
- Genz
- George
- Gerber
- Gernon
- Gerot
- Gerweck
- Gibbons
- Gibson
- Gilbert
- Gilberts
- Gilbertson
- Gilham
- Gilkison
- Gillaspie
- Gillespie
- Gillings
- Gillpatrick
- Gilmer
- Gilmore
- Gindhart
- Gingery
- Ginsburg
- Girvan
- Giustina
- Glass
- Gleason
- Glidden
- Globus
- Glover
- Goad
- Goble
- Goddard
- Goff
- Goldsbury
- Goldsmith
- Goldstein
- Golz
- Gomes
- Good
- Goodgion
- Gorder
- Gordon
- Gorg
- Gosar
- Gotchall
- Gotzman
- Gough
- Gould
- Gouse
- Gouveia
- Graff
- Graham
- Grandahl
- Graves
- Gray
- Green
- Greenleaf
- Greenlee
- Greer
- Gregory
- Gresl
- Gress
- Grier
- Griffin
- Griffith
- Griggs
- Grimes
- Groat
- Groff
- Grosenick
- Gross
- Grossnicklaus
- Grover
- Gryziec
- Guehler
- Guelld
- Gullickson
- Gummeson
- Guse
- Gusinow
- Gustafson
- Guthrie
- Gutierrez
- Gutoski