| Name | Meaning | Details |
|---|---|---|
| Gale | Pleasant | View Details |
| Gallagher | Descendant Of The Lover Of Foreigners | View Details |
| Garden | Cultivated Land Of Flowers Or Plants | View Details |
| Garridan | Descendant Of Gerard | View Details |
| Gaynor | Fair Phantom | View Details |
| Genna | Fair Phantom | View Details |
| Gennipha | Fair Phantom Or White Wave | View Details |
| Genoveva | White Phantom | View Details |
| Giacob | Supplanter | View Details |
| Giacomo | Supplanter | View Details |
| Gidget | Small Girl | View Details |
| Gillespie | "Son Of The Bishops Servant" | View Details |
| Gilmore | Servant Of The Virgin Mary | View Details |
| Gilroy | Servant Of The Redhaired Man | View Details |
| Giolla | Servant | View Details |