Cognoms nord-irlandesos amb f
- ferguson (4349)
- foster (2440)
- fleming (2223)
- fitzpatrick (2127)
- finlay (1936)
- fox (1721)
- ferris (1538)
- farrell (1457)
- forsythe (1419)
- flanagan (1415)
- fisher (1345)
- flynn (1331)
- fulton (1256)
- faulkner (1191)
- fletcher (1165)
- fegan (1031)
- fitzsimons (924)
- finnegan (860)
- forbes (856)
- frazer (848)
- friel (843)
- fee (824)
- fullerton (712)
- feeney (707)
- fitzsimmons (606)
- fearon (556)
- fraser (541)
- freeman (501)
- french (499)
- ford (470)
- forde (459)
- foy (450)
- fitzgerald (443)
- farren (440)
- fleck (409)
- francis (406)
- fallon (405)
- fenton (401)
- flood (390)
- foley (382)
- ferry (378)
- farr (377)
- farmer (376)
- farrow (370)
- finn (350)
- firth (333)
- freeburn (325)
- fay (318)
- faloon (313)
- fawcett (303)
- floyd (302)
- forster (298)
- fowler (290)
- fagan (290)
- fry (284)
- frew (281)
- finney (275)
- francey (262)
- findlay (254)
- farrelly (254)
- fields (241)
- falconer (239)
- farry (234)
- fahy (229)
- falls (229)
- franklin (228)
- frost (218)
- farley (216)
- forrest (190)
- fyfe (187)
- farquhar (185)
- flack (182)
- fairley (179)
- ferran (175)
- flannigan (174)
- fallis (168)
- foreman (163)
- fuller (162)
- flannery (156)
- frame (156)
- field (155)
- frizzell (152)
- feenan (149)
- fennell (143)
- fryers (136)
- fusco (131)
- forrester (128)
- flaherty (126)
- fairbairn (125)
- fogarty (125)
- furphy (124)
- fenning (120)
- fair (119)
- fryer (117)
- fyffe (114)
- farrington (113)
- fullen (113)
- farnan (112)
- furey (112)
- forker (111)
