Alphabetical List of Irish Names: E-G
Irish Surnames | A-B | C | D | E-G | H-J | K-L | Mac | M-N | O | P-R | S-W
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| Name | Variants | In Irish | Location | Origin | Comments |
|---|---|---|---|---|---|
| Egan | Keegan, MacEgan | Ó Aodhagáin | Tipperary, Kilkenny, Offaly | Gaelic | Means "son of Aodh or Hugh". |
| Fagan | O'Hagan, Fegan, O'Hogan | Ó Faodhagain | Dublin, Kerry | Gaelic | Means "little Hugh". |
| Fahy | Fahey, Faghy, Green | Ó Fathaigh | Widespread, Galway, Tipperary | Gaelic | Means "field green". |
| Fallon | Falloon | Ó Fallamhain | Cork, Donegal, Galway, Kerry, Wexford | Gaelic | Means "ruler" |
| Farrell | More O'Ferrall. More, O'Ferrall | Gaelic | From fear ghal meaning "brave man" | ||
| FitzGerald | Desmond, Gerald | Mac Gearailt | Norman | fitz means "son". The Earls of Desmond were FitzGeralds. The family originated in Italy, near Florence. | |
| Fitzpatrick | Kilpatrick, MacGillapatrick | MacGiolla Padraig | Widespread, Laois | Gaelic | Means "servant of St. Patrick", and unlike other 'Fitz' surnames is Irish, not Norman. |
| Flanagan | O'Flannagan | Ó Flannagain, | Fermanagh, Offaly, Roscommon. | Gaelic | Means "red". |
| Flynn | O'Flynn, Flinn, O'Loinn, O'Lynn | Ó Floinn | Antrim, Cork, Roscommon. | Gaelic | Means "red or ruddy", same derivation as Flanaghan. |
| Fogarty | Ó Fogartaigh | Tipperary | Gaelic | Means "exiled or banished". | |
| Foley | Ó Foghladha | Munster, Waterford. | Gaelic | Means "plunderer". | |
| Friel | Ó Frighil | Donegal, Ulster | Gaelic | From fear ghal meaning "brave man", same derivation as Farrell | |
| Gaffney | Caulfield | Ó Gamhna | Coonaught | Gaelic | Means "calf". |
| Gallagher | Ó Gallchobhair. | Donegal | Gaelic | Means "foreign help" | |
| Galvin, Gallivan | Gaelic | Ó Gealbháin, "bright white". Kerry, Roscommon. | |||
| Garvey | Gaelic | O Gairbith or Mac Gairbhith, "rough peace". Armagh, Donegal, Down, Kilkenny. | |||
| Geraghty | Garrity, Gerity, Gerritty & many similar. | Ó Oireachtaigh | Galway, Roscommon | Gaelic | Means "court or assembly" |
| Gilday | Gildea | Mac Giolla Dhé | Clare | Gaelic | Means "the son of the follower of God." |
| Griffin (1) | Ó Gríobhtha, Ó Gríofa | Kerry, Clare | Gaelic | Gaelic version is derived from a nickname which meant "Brave Warrior". Most Clare Griffons descend from Angus, Son of Dal a 4th century chieftain. | |
| Griffin (2) | Griffith, Griffiths, Griffis | Ó Gríobhtha, Ó Gríofa | Widespread but not common | Norman | Welsh-Norman planters who changed their name to Griffin after arriving in Ireland. |
| Guinness | McGennis, MacGinnis, Magennis, McGuiness, MacGuinness, MacInnis | MacAonghusa | Widespread | Gaelic | Means "son of Aonghus" a 5th century. chief of Dal Araidhe. |
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