| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 701 | Glaleanna | Irish | Dwells in the glen. | M | |
| 702 | Godfrey | Irish | Peace from God. | M | |
| 703 | Gofraidh | Irish | Peace from God. | M | |
| 704 | Gogarty | Irish | Banished. | M | |
| 705 | Golligan | Irish | Surname. | M | |
| 706 | Gormain | Irish | Blue. | M | |
| 707 | Gorman | Irish | Blue. | M | |
| 708 | Gormley | Irish | Surname. | M | |
| 709 | Gorrie | Irish | Peace from God. | M | |
| 710 | Gorry | Irish | Peace from God. | M | |
| 711 | Gothfraidh | Irish | Peaceful. | M | |
| 712 | Grady | Irish | Noble; man of rank. | M | |
| 713 | Greagoir | Irish | Watchful. | M | |
| 714 | Griffin | Irish | Surname. | M | |
| 715 | Grioghar | Irish | Watchful. | M | |
| 716 | Hagan | Irish | Little Hugh. | M | |
| 717 | Haley | Irish | Ingenious. | M | |
| 718 | Hanlon | Irish | Surname. | M | |
| 719 | Hannraoi | Irish | Variant of Einri: Rules the home. | M | |
| 720 | Hanraoi | Irish | Rules the home. | M | |