- Galindo
- Gallas
- Galloway
- Gally
- Gamarian
- Gamb
- Gamez
- Garcia
- Gardner
- Garfield
- Garibyan
- Garrison
- Gause
- Gebhard
- Gentile
- Gertmenian
- Giardello
- Gifford
- Gill
- Gillespie
- Gilliam
- Gilroy
- Gin
- Gist
- Glatstein
- Gleason
- Glenn
- Goldreich
- Golles
- Gomez
- Gong
- Gonzales
- Gooch
- Goodstein
- Gordon
- Gott
- Gottschewski
- Gould
- Graff
- Graham
- Grant
- Grantham
- Greathouse
- Greco
- Green
- Greenstone
- Grimes
- Grimm
- Grosenbaugh
- Gross
- Grosshans
- Grunwaldt
- Gruszynski
- Guledjian
- Gutierrez
- Gutstadt
- Guzelmoray
- Guzman