| Fintan | Irish | Anglicized form of Fionntan (little.. |  |  |
| Fiona | Irish | Derived from fionn (fair, white, cl.. |  | |
| Fionan | Irish | Diminutive form of fionn (fair): he.. | | |
| Fionn | Irish | Derived from the Gaelic fionn (fair.. |  | |
| Fionnbharr | Irish | Compound name composed of the Gaeli.. | | |
| Fionnghuala | Irish | Compound name composed of the Gaeli.. | | |
| Fionntan | Irish | Diminutive form of fionn (fair, whi.. | | |
| Fitzroy | Irish | Meaning "son of the king."
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| Flann | Irish | Old name derived from flann (red): .. | | |
| Flannan | Irish | Diminutive form of Flann (red): hen.. | | |
| Flora | Irish | A borrowing from the English, Flora.. | | |
| Flynn | Irish | A name that means "son of the red-h.. | | |
| Forbes | Irish | Transferred use of the surname, whi.. | | |
| Gabriel | Irish | From the Hebrew Gavriel, which is d.. |  | |
| Gaibrial | Irish | Gaelic form of Gabriel (God is my s.. | | |
| Galen | Irish | A borrowing from the English, Galen.. | | |
| Galforaith | Irish | Meaning "Scotsman in Ireland." Econ.. | | |
| Galvin | Irish | Meaning "sparrow." | | |
| Gannon | Irish | Transferred use of the surname mean.. | | |
| Garbhan | Irish | Diminutive form of garbh (rough): h.. | | |
| Garrett | Irish | Transferred use of the surname, whi.. | | |
| Garvan | Irish | Anglicized form of Garbhan (little .. | | |
| Garvey | Irish | Meaning "rough peace." This is usua.. | | |
| Gearalt | Irish | Gaelic form of Gerald (spear rule),.. | | |
| Gearard | Irish | Gaelic form of Gerard (brave with a.. | | |
| Gearoid | Irish | Gaelic form of Garrett (spear rule;.. | | |
| Gemma | Irish | A borrowing from the Italian, Gemma.. | | |
| Geoffrey | Irish | A borrowing from the English, the n.. | | |
| George | Irish | A borrowing from the English in the.. | | |
| Gerald | Irish | Introduced by the Anglo-Normans, Ge.. | | |
| Gerard | Irish | Introduced by the Anglo-Normans, Ge.. | | |
| Gertrude | Irish | Derived from the Old High German Ge.. | | |
| Ghilchrist | Irish | Meaning "servant of Christ." | | |
| Gil | Irish | Short form of any of the various na.. | | |
| Gilbert | Irish | From the Old French Guillebert (fam.. | | |
