- Gadberry
- Gaddis
- Gaddy
- Gage
- Galbreath
- Galindo
- Galyean
- Gambel
- Gandy
- Gans
- Gantt-Marcus
- Gardner
- Garison
- Garner
- Garrett
- Garrick
- Garrison
- Garvin
- Gaston
- Gates
- Gatlin
- Gattis
- Gay
- Gaylord
- Gazette
- Gentry
- George
- Gerard
- Gettis
- Gibbons
- Gibson
- Giglia
- Gilbert
- Gilbreath
- Giles
- Gill
- Gillerson
- Gillette
- Ging
- Gipson
- Gitchel
- Givens
- Glaze
- Gleason
- Glover
- Godbey
- Godfrey
- Goff
- Golden
- Golding
- Goldsby
- Gondek
- Gonzalez
- Gooden
- Goodhart
- Goodson
- Goodwin
- Goosen
- Gordon
- Gosnell
- Goss
- Gossien
- Gottschalk
- Graham
- Grahn
- Grant
- Graves
- Gravis
- Gray
- Green
- Greene
- Greenwood
- Greer
- Gregorie
- Gregory
- Gremillion
- Gresham
- Griffen
- Griffey
- Griffin
- Griffis
- Griffith
- Griggs
- Grigsby
- Grimes
- Grimmette
- Grissom
- Grizzelle
- Grobmyer
- Grunden
- Guard
- Guest
- Guinn
- Guldin
- Gullett
- Gulley
- Gunn
- Gurrieri
- Gustafson
- Guthridge
- Gutierrez
- Guy