| Name | Group | Language of Origin | Languages of Use | Meaning/Translation or Related Words | US 2021 |
| Glauco | Glauco | Old Greek | Portuguese, Spanish, Italian | bluish-green | |
| Gleb | Gleb | Old Norse | Russian | Words: God / descendant | |
| Glen | Glen | Celtic | English, Scottish | maybe from the valley | |
| Glenn | Glen | Celtic | English, Scottish | maybe from the valley | |
| Goddard | Gotthard | Old High German | English | Words: God / brave, hardy | |
| Godfrey | Godfrey | Old High German | English | Words: God / peace, protection, safety | |
| Godlef | Gottlieb/Godelieve | Old High German | Dutch | Words: God / dear, beloved / God / offspring | |
| Godofredo | Godfrey | Old High German | Portuguese, Spanish | Words: God / peace, protection, safety | |
| Goffredo | Godfrey | Old High German | Italian | Words: God / peace, protection, safety | |
| Gohar | Gohar | Old Persian | Arabic, Persian | jewel | |
| Gökhan | Gökhan | Turkish | Turkish | | |
| Göktug | Göktug | Unknown | Turkish | | |
| Golo | Golo | German | German | Words: God | |
| Gomberto | Guntbert | Old High German | Italian | Words: fight / bright | |
| Gomer | Gomer | Hebrew | English | | |
| Gonçalo | Gonzalo | Old High German | Portuguese | Words: fight | |
| Gonsalve | Gonzalo | Old High German | French | Words: fight | |
| Gonzalo | Gonzalo | Old High German | Spanish | Words: fight | |
| Gor | Gor | Armenian | Armenian | fierce | |
| Goran | Goran | Slavic | Slavic | | |
| Göran | Georg/Georgia | Old Greek | Scandinavian | farmer, earthworker | |
| Gordan | Gordan | Hungarian | Hungarian | | |
| Gordian | Gordian | Latin | German | from Gordion | |
| Gordon | Gordon | Celtic | English, Scottish | maybe great hill | #925 |
| Gösta | Gustaf | Old Norse | Scandinavian | Words: goth / stick, staff | |
| Goswin | Goswin | Old High German | German | Words: goth / friend | |
| Gottfried | Godfrey | Old High German | German | Words: God / peace, protection, safety | |
| Gotthard | Gotthard | Old High German | German | Words: God / brave, hardy | |
| Gotthold | Gotthold | German | German | Words: God / graceful | |
| Gottlieb | Gottlieb/Godelieve | Old High German | German | Words: God / dear, beloved / God / offspring | |
| Gottschalk | Gottschalk | Old High German | German | Words: God / servant | |
| Götz | Godfrey | Old High German | German | Words: God / peace, protection, safety | |
| Gou | Gou | Japanese | Kanji symbol, Japanese | strong, tough | |
| Graciano | Graziano/Graziana | Latin | Portuguese, Spanish | | |
| Grady | Grady | Old Irish | English, Irish | son of Grádaigh | #428 |
| Graeme | Graham | Old English | English | maybe grey house | |
| Graham | Graham | Old English | English, Scottish | maybe grey house | #161 |
| Granger | Granger | Old French | English | farm bailiff | #950 |
| Granit | Granit | Unknown | German | | |
| Grant | Grant | Old English | English, Scottish | the great | #212 |
| Gratian | Graziano/Graziana | Latin | German, English | | |
| Gratien | Graziano/Graziana | Latin | French | | |
| Gray | Gray | English | English | grey | |
| Graysen | Grayson | Old English | English | son of Grave | #927 |
| Grayson | Grayson | Old English | English | son of Grave | #35 |
| Grazian | Graziano/Graziana | Latin | German | | |
| Graziano | Graziano/Graziana | Latin | Italian | | |
| Greg | Gregory/Gregoria | Old Greek | English | the watchful | |
| Gregg | Gregory/Gregoria | Old Greek | English | the watchful | |
| Grégoire | Gregory/Gregoria | Old Greek | French | the watchful | |
| Gregor | Gregory/Gregoria | Old Greek | German, Scottish | the watchful | |
| Gregorio | Gregory/Gregoria | Old Greek | Spanish, Italian | the watchful | |
| Gregory | Gregory/Gregoria | Old Greek | English | the watchful | #485 |
| Grégory | Gregory/Gregoria | Old Greek | French | the watchful | |
| Grey | Gray | English | English | grey | #715 |
| Greysen | Grayson | Old English | English | son of Grave | |
| Greyson | Grayson | Old English | English | son of Grave | #83 |
| Griffin | Griffin | English | English | griffin | #232 |
| Grigori | Gregory/Gregoria | Old Greek | Russian | the watchful | |
| Grigorij | Gregory/Gregoria | Old Greek | Russian | the watchful | |
| Grimaldo | Grimwald | Old High German | Spanish | Words: grim | |
| Grimwald | Grimwald | Old High German | German | Words: grim | |
| Grischa | Gregory/Gregoria | Old Greek | Russian | the watchful | |
| Grover | Grover | Old English | English | | |
| Grzegorz | Gregory/Gregoria | Old Greek | Polish | the watchful | |
| Guadalupe | Guadalupe/Guadalupe | Arabic | Spanish, English | wolf river | |
| Gualtiero | Walter | Old High German | Spanish, Italian | Words: rule / army, warrior | |
| Guarino | Guerino/Guerina | Old High German | Italian | Words: preserve, guard, protect / Warni / warn | |
| Guarniero | Werner | Old High German | Italian | Words: Warni / army, warrior / preserve, guard, protect | |
| Guðjón | Guðjón | Icelandic | Icelandic | Words: God | |
| Gudmund | Gudmund | Old Norse | Scandinavian | Words: God / protection, protector | |
| Guðmundur | Gudmund | Old Norse | Icelandic | Words: God / protection, protector | |
| Guerino | Guerino/Guerina | Old High German | Italian | Words: preserve, guard, protect / Warni / warn | |
| Guerrino | Guerino/Guerina | Old High German | Italian | Words: preserve, guard, protect / Warni / warn | |
| Guglielmo | William/Wilhelma | Old High German | Italian | Words: will, desire / helmet, protection | |
| Guido | Guido | Old High German | German, Italian | Words: wood, forest | |
| Guilhem | William/Wilhelma | Old High German | French | Words: will, desire / helmet, protection | |
| Guilherme | William/Wilhelma | Old High German | Portuguese | Words: will, desire / helmet, protection | |
| Guiliano | Julian/Juliana | Latin | Maltese | | |
| Guilielmus | William/Wilhelma | Old High German | Dutch | Words: will, desire / helmet, protection | |
| Guillaume | William/Wilhelma | Old High German | French | Words: will, desire / helmet, protection | |
| Guillem | William/Wilhelma | Old High German | Catalan | Words: will, desire / helmet, protection | |
| Guillermo | William/Wilhelma | Old High German | Spanish | Words: will, desire / helmet, protection | #812 |
| Guiomar | Guiomar/Guiomar | Spanish | Portuguese, Spanish | | |
| Guiseppe | Joseph/Josepha | Hebrew | Italian | He (God) will add | |
| Gumbert | Guntbert | Old High German | German | Words: fight / bright | |
| Gumercindo | Gumersindo/Gumersinda | Gothic | Portuguese | Words: man, human being / strong, powerful / way, journey | |
| Gumersindo | Gumersindo/Gumersinda | Gothic | Spanish | Words: man, human being / strong, powerful / way, journey | |
| Gumesindo | Gumersindo/Gumersinda | Gothic | Spanish | Words: man, human being / strong, powerful / way, journey | |
| Gumpert | Guntbert | Old High German | German | Words: fight / bright | |
| Gunar | Günther | Old High German | Scandinavian | Words: fight / army, warrior | |
| Gundbert | Guntbert | Old High German | German | Words: fight / bright | |
| Gundhard | Gunthard | Old High German | German | Words: fight / brave, hardy | |
| Gundolf | Gundolf | Old High German | German | Words: fight / wolf | |
| Gunnar | Günther | Old High German | Scandinavian | Words: fight / army, warrior | #540 |
| Gunner | Günther | Old High German | English | Words: fight / army, warrior | #324 |
| Guntbert | Guntbert | Old High German | German | Words: fight / bright | |
| Gunter | Günther | Old High German | German | Words: fight / army, warrior | |
| Günter | Günther | Old High German | German | Words: fight / army, warrior | |
| Gunthard | Gunthard | Old High German | German | Words: fight / brave, hardy | |