| Fetzer (11,181) | Fey (11,995) | Fick (17,896) |
| Fidler (17,597) | Fiedler (22,125) | Field (129,869) |
| Fielder (24,998) | Fielding (21,139) | Fields (396,535) |
| Fierro (24,897) | Fife (23,798) | Fifer (10,746) |
| Fifield (11,579) | Figueroa (213,440) | Fike (20,750) |
| Files (10,592) | Fillmore (11,445) | Finch (131,095) |
| Fincher (24,127) | Findlay (11,461) | Findley (34,683) |
| Fine (39,612) | Finger (17,506) | Fink (121,281) |
| Finke (10,595) | Finkelstein (21,715) | Finley (153,514) |
| Finn (90,795) | Finnegan (45,343) | Finnerty (13,318) |
| Finney (66,064) | Finnigan (12,103) | Fiore (22,635) |
| Firestone (11,171) | Firth (12,477) | Fischer (258,878) |
| Fish (120,982) | Fishel (10,055) | Fisher (1,049,329) |
| Fishman (20,235) | Fisk (52,460) | Fiske (17,249) |
| Fitch (87,078) | Fite (17,541) | Fitts (19,452) |
| Fitz (16,457) | Fitzgerald (356,680) | Fitzgibbons (9,995) |
| Fitzhugh (10,509) | Fitzpatrick (190,991) | Fitzsimmons (39,580) |
| Fitzwater (10,725) | Fix (17,199) | Flack (24,582) |
| Flagg (28,566) | Flaherty (75,749) | Flake (10,886) |
| Flanagan (112,602) | Flanders (39,323) | Flanigan (35,565) |
| Flannagan (10,860) | Flannery (36,777) | Flannigan (22,134) |
| Flatt (11,700) | Fleck (28,604) | Fleetwood (10,379) |
| Fleischer (10,761) | Fleischman (9,821) | Fleming (357,791) |
| Flemming (56,617) | Fletcher (350,412) | Fleury (9,890) |
| Flick (29,732) | Flickinger (14,874) | Flinn (39,333) |
| Flint (70,057) | Flood (76,390) | Flora (28,214) |
| Florence (30,076) | Flores (892,891) | Florez (22,222) |
| Flory (17,162) | Flournoy (12,215) | Flower (16,368) |
| Flowers (132,733) | Floyd (243,659) | Flynn (292,407) |
| Fogarty (31,572) | Fogel (14,371) | Fogg (27,513) |
| Fogle (35,503) | Foley (241,905) | Folk (21,432) |
| Follett (11,737) | Folsom (30,367) | Foltz (30,952) |
| Fong (30,996) | Fonseca (44,039) | Fontaine (31,185) |
