| Gaul (14,396) | Gault (24,564) | Gause (11,456) |
| Gauthier (44,479) | Gavin (48,373) | Gay (137,597) |
| Gayle (18,825) | Gaylor (10,212) | Gaylord (23,054) |
| Gaynor (20,639) | Gaytan (20,885) | Gearhart (24,993) |
| Geary (48,370) | Gebhardt (17,308) | Gebhart (13,501) |
| Geddes (12,503) | Gee (90,887) | Geer (32,461) |
| Gehring (15,293) | Gehrke (11,032) | Geier (10,377) |
| Geiger (81,743) | Geis (11,314) | Geiser (10,782) |
| Geisler (20,732) | Geist (17,844) | Geller (18,157) |
| Gendron (10,610) | Genovese (10,226) | Gentile (37,027) |
| Gentry (156,118) | George (389,139) | Gephart (10,310) |
| Gerald (26,155) | Gerard (36,374) | Gerber (57,031) |
| Gerdes (16,070) | Gerhard (9,880) | Gerhardt (16,660) |
| Gerhart (15,958) | Gerlach (23,179) | Germain (22,244) |
| German (54,553) | Gerry (13,838) | Gervais (10,473) |
| Getchell (10,011) | Getty (10,404) | Getz (28,628) |
| Geyer (30,003) | Gibb (11,739) | Gibbons (121,292) |
| Gibbs (264,822) | Giblin (9,891) | Gibson (780,828) |
| Giddens (16,053) | Giddings (17,910) | Gideon (11,303) |
| Giese (19,973) | Giffin (15,238) | Gifford (91,998) |
| Gil (43,839) | Gilbert (487,484) | Gilbertson (29,028) |
| Gilbreath (14,515) | Gilchrist (45,704) | Giles (153,926) |
| Gilkey (9,863) | Gill (282,012) | Gillam (16,855) |
| Gillard (10,986) | Gillen (34,029) | Gilles (10,906) |
| Gillespie (155,100) | Gillett (30,251) | Gillette (37,689) |
| Gilley (28,131) | Gilliam (86,954) | Gilligan (25,681) |
| Gilliland (45,174) | Gillis (69,269) | Gillispie (24,197) |
| Gillman (17,045) | Gillmore (12,732) | Gillum (14,353) |
| Gilman (58,474) | Gilmartin (11,471) | Gilmer (23,153) |
| Gilmore (199,635) | Gilpin (19,856) | Gilroy (15,525) |
| Gilson (32,952) | Gilstrap (12,109) | Gingrich (10,544) |
| Ginn (25,186) | Ginsberg (18,200) | Ginsburg (10,436) |
| Ginter (11,490) | Giordano (39,388) | Gipson (62,208) |
