Ferriter / Fheirtearaigh / Feiritear / Feirteir (to hunt with ferrets) Anglo Norman origins. They were at Ballyferriter in Co. Kerry in the south - west of Iar Mhumhain / Western Munster since 1295 AD.

O Ferry or O Farry. A Heremonian Ui Cobhthaigh Dal Cuinn "Northern" Ui Niaill Cenel Conaill Sept / Family branch, who had their territory in Co. Donegal in the north - west of the Ulster Province. See also - Fairy. Ancestors - *88.Conall "Gulban" the 1st King of Tir Conaill / Tyrconnell (Cenel Conaill), *86.Niall of the Nine Hostages the 126th King of Tara / Ireland (Ui Niaill).

Fetherston. English toponymic origins. They have been in Co. Roscommon in the east of the Connacht Province and nearby in Co. Westmeath in the south - west of Northern Leinster since the Oliver Cromwell Invasion.

Mac Fetrick - Irish / Mheic Phadraic. They were in Co. Antrim in the north - east of the Ulster Province. See also  - Mac Fettridge.

Mac Fettridge - Irish / Mheic Pheadruis (Descended from a son of Petryus) They were in Co. Antrim in the north - east of the Ulster Province. Confused with Mac Fetrick, which see.

O Fewer - Irish / Ua Fiodabhair (bushy eyebrows). A variant used for Feore, which see, in Co. Kilkenny in the south - west of Southern Leinster and Co. Waterford in the south - east of the Munster Province.

Mac Fheorais. Norman origins.- Gaelicized. See - Birmingham.

O Fihelly. A Sept / Family branch, who had their territory in Co. Cork in Desmond / Des Mhumhain / Southern Munster. They were also in Co. Roscommon in the east of the Connacht Province. See also - Fehilly.

O Filbin. Used as a variant for Philbin, which see, in Co. Mayo in the mid - west of the Connacht Province.

Filgate(field gate) English origins. They were in Co. Louth in the north - east of Northern Leinster and came with the Oliver Cromwell Invasion. They were also in Co. Dublin in the north - east of Southern Leinster in the 17th Century AD.

O Finaghty or O Finnerty - Irish / Ua Fionnachta - fionn / fair - sneachta / snow. A Heremonian Ui Cobhthaigh Dal Cuinn Ui Briuin Siol Muireadhaigh / Sil Murray Sept / Family branch, who had their territory in Co. Roscommon in the east of the Connacht Province. Descended directly from 97.Muiredach "Muillethan" the 18th King of Connacht and direct ancestor of the (Siol Muiredaigh) and O Connor Kings of Ireland. Now mostly known as Finnerty. See also - Fenton. Ancestors - *87.Brion the original 1st King of Connacht (Ui Niaill), *86.Eochy "Mugmedon" the 124th King of Tara / Ireand.

O Finan - Irish / Ua Fionnain. A Heremonian Ui Cobhthaigh Dal Cuinn "Northern" Ui Fiachrach Muaighe Sept / Family branch, who were the Chiefs of Coolcarney and had their territory in Co. Mayo in the mid - west of the Connacht Province. Anglicized elsewhere as Fanning, which see. Ancestors - *87.Fiachra the original 2nd King of Connacht (Ui Fiachrach), *86.Eochy "Mugmedon" the 124th King of Tara / Ireland.

O Finarghty or O Finerty - Irish / Ua Fionnachta. A Heremonian Ui Cobhthaigh Dal Cuinn Ui Maine Sept / Family branch, who had their territory in Co. Galway and nearby in Co. Roscommon in Southern Connacht and were Chiefs of Clan Conway. Ancestors - *86.Maine "Mor" (Ui Maine), *85.Murray / Muiredach "Tireach" the 122nd King of Tara / Ireland, *80.Conn of the Hundred Battles the 110th King of Tara / Ireland (Dal Cuinn).

Finch (a bird) English origins. They were in the Munster Province in the early 17th Century AD and are now also in the Ulster Province.

O Finegan. A Sept / Family branch, who had their territory in Co. Mayo and nearby in Co. Sligo in the west of the Connacht Province. See also - O Finnegan.

O Fineen -

Finglas / de Fionnglas - Irish toponymic origins. They were in Co. Dublin in the north - east of Southern Leinster in the 13th Century AD.

Finlan. Used as a variant for Fenlon, which see, in Northern Leinster.

Finlay or Findley. Highland Scottish origins. A Heremonian Ui Cobhthaigh Ui Conaire Sept of the Farquarsons. Used also as a synonym for Fennelly, which see, in Co. Laois and Co. Offaly in the north - west of Southern Leinster. Ancestors - Conaire the 111th King of Tara / Ireland (Ui Conaire), *60.Coffey / Cobhthach the 69th King of Tara / Erinn (Ui Cobhthaigh), *37.Heremon (Heremonians)

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