| Name |
Pronunciation |
Meaning |
English Spelling |
Gender |
| Fachtna | (FACHT-na) | | | M/F |
| Fachtnán | (facht-NAWN) | | | M |
| Fáelan, Faolán | (FEY-lawn) | | Phelan, Whelan | M |
| Fáelchú, Faolchú | (FEYL-koo) | | | M |
| Faife | (FAF-fa) | | | F |
| Faílbe, Fáilbhe | (FEYL-vey) | | | M |
| Faílenn, Faoileann | (FEEL-en) | | | F |
| Failge, Failghe | (FAL-yeh) | | Offaly (O Failge) | M |
| Faíltigern, Faoiltiarn | (FEL-tiarn) | | | M |
| Fairchellach, Faircheallach | (FAR-hal-ach) | | | M |
| Faithliu, Faithlenn, Faithleann | (FAL-lan) | | Fallon | M |
| Fainder, Fainnear | (FAN-er) | | | F |
| Fand, Fann | (FAWN) | | | F |
| Febal, Feabhal | (FAV-el) | | | M |
| Fechíne, Fechín, Feichín | (fe-HEEN) | | Fehin, Feheen | M |
| Fechtnach, Feachtnach | (FACHT-nach) | | | M |
| Fedach, Feadhach, Feách | (FAWCH) | | | M |
| Fedelm, Feidhelm | (fed-ELM) | | Fedelma | M |
| Fedelmid, Feidlimid, Feidhlimidh, Feidhlim | (FEYL-im-ey, FEYL-im) | | | M, F |
| Feirgil, Firgil | (FER-gel) | borrowing of Latin "Virgil" | | M |
| Felic | (FEL-ik) | borrowing of Latin Felix | | M |
| Feme | (FAY-va) | | | F |
| Femmair, Feamair | (FAM-er) | | | F |
| Feoras | (FOR-as) | | | M |
| Feradach, Fearadhach | (FAR-a-dach, FAR-ick) | | | M |
| Ferchar, Fearchar | (FAR-char) | | Farquhar | M |
| Ferchertne | (far-CHART-nee) | | | M |
| Ferdomnach, Feardomhnach | (far-DOWN-ach) | | | M |
| Ferdorcha, Feardorcha | (far-DOR-cha) | | | M |
| Fergal, Fearghal | (FAR-el, FERG-al) | | Farrell, Fergal | M |
| Ferganainm, Fearganainm | (FAR-gan-am) | | | M |
| Fergus, Fearghus | (FAR-us, FERG-us) | | Ferris, Fergus | M |
| Féthchú | (FEY-koo) | | | M |
| Féthmac | (FEY-vok) | | | M |
| Féthnat | (FEY-nat) | | | F |
| Fiacc | (FEE-ak) | | | M |
| Fiachna | (FEE-ak-na) | | | M |
| Fiachrae, Fiachra | (FEE-ak-ra) | | | M |
| Fiachu, Fiacha | (FEE-ak-a) | | | M |
| Fiadnat, Fiadhnait, Fianait | (FEE-an-it) | | | F |
| Fial | (FEE-al) | | | F |
| Fiamuin, Fiamain | (FEE-a-vin) | | | F |
| Fianchú | (FEE-an-koo) | | | M |
| Fínán, Fíonán | (FEEN-awn) | | | M |
| Finchán, Fionchán | (fun-KAWN) | | | M |
| Fíne, Fíona | (FEE-na, FEE-o-na) | | | F |
| Fíngin, Fínghin, Fínín | (fin-EEN) | | | M |
| Finguine, Fionghuine | (fin-EEN-a) | kin-slayer | Fineen | M |
| Fínmed, Fínmhidh | (FIN-vee) | wine-mead | Finnvey | F |
| Finn, Fionn | (FINN) | fair, bright white, light-hued | | M,F |
| Finnabair, Fionnabhair, Fionnúir | (fin-OOR) | white ghost | Fennore, Finora | F |
| Finnacán, Fionnagán | (FIN-ach-a) | fair, bright white, light-hued | Finnegan | M |
| Finnán, Fionnán | (fun-AWN) | fair, bright white, light-hued | Fionnáin, Finan | M |
| Finnbarr, Fionnbharr | (FUN-var) | fair-haired | Finbar | M |
| Finnchad, Fionchadh, Fionacha | (FUN-ach-a) | fair battler | | M |
| Finncháem, Fionnchaomh | (FUN-kev) | fair, beautiful | | F |
| Finchán, Fionnchán | (FUN-kawn) | | | M |
| Finnchnes, Finnchneas | (FIN-ku-nas) | fair-skinned | | |
| Finnchú, Fionnchú | (FUN-koo) | fair hound, fair warrior | Fanahan | M |
| Finnech, Findach, Fionnach | (FUN-ach) | fair | Finney | M,F |
| Finneacht, Finneacht | (FIN-acht) | fair | | F |
| Fínnechta, Fínsnechta, Fínneachta | (FIN-acht-a) | | | M |
| Finnén, Finnian | (FIN-eyn) | fair | Finnian, Finnon | M |
| Finnétan, Finnéadan | (fin-NEY-dan) | fair brow | | F |
| Finnguala, Fionnghuala, Fionnuala | (fin-OOL-a) | fair shouldered | Finnoula | F |
| Finnlug, Fionnlugh, Fionnlú | (fin-LOO) | Finn + Lugh | | M |
| Finnmaith, Fionnmhaith | (FIN-va) | fair, good | Finnva | F |
| Finnat, Findnat, Fionnait | (FIN-at) | fair, blonbe lady | Finnat | F |
| Finnsech, Finnseach | (FIN-sach) | fair, blonde girl | Finnsa | F |
| Finnseng, Finneang | (FIN-eng) | fair, slim | | F |
| Fínscoth | (FIN-ska) | wine-blossom | | F |
| Fintan, Fiontan | (FIN-tan) | white fire | | M |
| Fíthel, Fítheal | (FEE-hal) | a sprite, a goblin | Feehal | M |
| Fithir | (FEE-her) | | | F |
| Flaithbertach, Flaithbheartach, Flathartach | (FLA-hart-ach) | princely | Flaherty | M |
| Flaithem, Flaitheamh | (FLA-hav) | | Flaithim, Flahive | M |
| Flaithrí | (FLAH-ree) | warrior king | | M |
| Flann | (FLAWN) | bright red | | M,F |
| Flannacán, Flannagán | (FLAN-a-gawn) | bright red | Flanagan | M |
| Flannán | (flan-AWN) | bright red | | M |
| Flannat, Flannait | (FLAN-it) | bright red | | F |
| Flannchad, Flannchadh, Flannacha | (FLAN-a cha) | red warrior | Clancy | M |
| Flidais | (FLID-is) | | | F |
| Fócarta, Fuacarta, Fógarta | (FOH-gar-ta) | outlaw | Fogarty | M |
| Fodla, Fodhla | (FOH-la) | name for Ireland | Folagh | F |
| Fogartach, Foghartach | (FOR-tach) | | | M |
| Forannán, Farannán | (FUR-an-awn) | | | M |
| Forbassach, Forbhasach | (FUR-vas-ach) | conqueror | | M |
| Forbflaith, Farbhlaidh, Forlaith | (FUR-la) | | Farley, Ferla | F |
| Fortchern, Foirtchearn | (FIRT-karn) | overlord | | M |
| Fothud, Fothadh | (FOO-ha) | | | M |
| Fráech, Fraoch | (FREYK) | "heather" | | M |
| Fráechán, Fraochán | (FREYK-awn) | "heather" | | M |
| Fráechnat, Fraochnait | (FREYK-nit) | | | F |
| Frassach, Frossach | (FRAS-ach) | rain shower | | M |
| Fuinche, Fainche | (FIN-hee) | Irish goddess of war | Finney | F |
| Fursu, Fursa | (FUR-sa) | | Fursey | M |