| Giancarlos | God is gracious and a free man. |
| Giannis | Yahweh is Merciful or Gracious |
| Gilman | A servant of a man named Gilbert. |
| Gines | Derived from the Latin word for born. |
| Gio | Italian, means 'God' or 'lord' |
| Gionata | Italian, means 'God is gracious' |
| Gismo | One who is Playful |
| Gizmo | One who is Playful |
| Glenwood | A Forest in a Valley |
| Gocha | Japanese, means 'five virtues' |
| Goh | Korean, means 'five virtues' or 'good fortune' |
| Gospel | English, refers to the Christian message |
| Gracjan | Polish form of Gregory, meaning 'watchful' or 'alert' |
| Grandmaster | High-ranking chess title, signifying exceptional skill and expertise |
| Gretar | Icelandic name meaning 'spear ruler' or 'warrior leader' |
| Grove | English surname referring to a wooded area or a group of trees |
| Guan | Chinese surname meaning 'valley' or 'gorge' |
| Guard | One who Protects Others |
| Gudni | Icelandic name meaning 'battle' or 'warrior' |
| Guil | French name meaning 'will' or 'strong-willed' |
| Gundee | A name meaning a warrior in battle. |
| Gundey | One who is a fighter in the battle. |
| Gundi | A name meaning a person of war. |
| Haas | A surname meaning a hare or rabbit. |
| Haik | Japanese name meaning 'sea child' or 'ocean child' |
| Hakaa | A name meaning a dance or chant. |
| Hamer | One who works with a hammer. |
| Hap | English surname referring to a happy or fortunate person |
| Happi | Filled with Joy |
| Hark | English name meaning 'listen' or 'pay attention' |
| Harout | Armenian name meaning 'lion' or 'bringer of light' |
| Harp | A player of the stringed harp. |
| Harryson | The son of a powerful ruler. |
| Harvy | A battleworthy army warrior. |
| Havoc | English name meaning 'chaos' or 'destruction' |
| Herm | A messenger of the ancient gods. |
| Heston | English surname referring to a place name in Kent, England |
| Hiawatha | Maker of Rivers |
| Hokuto | Japanese name meaning 'north pole' or 'northern region' |
| Hollywood | One who is Flashy or Cocky |