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| Name | Meaning | Gender | Origin |
| Gitano | Gypsy | M | Italian |
| Gitel | Good | F | Hebrew |
| Gittel | Good | F | Hebrew |
| Giulia | Youthful | F | Italian |
| Giuliano | Youthful. | M | Italian |
| Giulio | Youthful | M | Italian |
| Giuseppe | Form of JOSEPH | M | Hebrew |
| Giverny | Town in France | F | French |
| Giza | Hewn Stone | F | Hebrew |
| Gizela | Pledge | F | Polish |
| Gizi | Pledge | F | Hungarian |
| Gizur | Leader of the attack on Hlidarend. | M | Norse |
| Gizus | Oath. | F | Teutonic |
| Gjallar | Horn sounded for Ragnorok. | M | Norse |
| Gjalp | A giant. | F | Norse |
| Gjerta | Protection. | F | Danish |
| Gjest | Stranger. | M | Norse |
| Glad | Happy. | F | English |
| Gladis | Variant of Claudia: Lame. | F | Welsh |
| Gladwin | Happy friend. | M | English |
| Gladwyn | Happy friend. | M | English |
| Gladys | Lame | F | Welsh |
| Glaedwine | Happy friend. | M | English |
| Glain | Jewel | F | Welsh |
| Glais | Percival's grandfather. | M | Arthurian Legend |
| Glaleanna | Dwells in the glen. | M | Irish |
| Glan | From the shore. | F | Welsh |
| Glansdale | Henry VI/ Part 1' Sir William Glansdale. | M | Shakespearean |
| Glauce | Murdered by Medea. | F | Greek |
| Glaucus | Son of Minos. | M | Greek |
| Gleann | From the glen. | M | Gaelic |
| Gleda | Happy. | F | English |
| Gleipnif | Magic net woven to hold Fenrir. | M | Norse |
| Gleis | Legendary son of Merin. | M | Welsh |
| Glen | A Secluded/ Woody Valley | M | Celtic/Gaelic |
| Glenda | Holy and Good | F | Celtic/Gaelic |
| Glendale | Valley. | M | Gaelic |
| Glendon | From the dark glen. | M | Gaelic |
| Glendyn | Valley. | M | Gaelic |
| Glenis | Variant of Glenda. Fair/ good/ holy. | F | Welsh |
| Glenn | From the name GLEN | M | Celtic/Gaelic |
| Glenna | Fem. form of GLEN | F | Celtic/Gaelic |
| Glenne | Valley. From the glen. | F | Gaelic |
| Glennis | From the Valley or Glen | F | English |
| Glenys | Beautiful & Holy | F | Celtic/Gaelic |
| Glew | Legendary son of Ysgawd. | M | Welsh |
| Glifieu | Mythical son of Taran. | M | Celtic |
| Glinda | Fair; good. | F | Welsh |
| Glinyeu | Legendary son of Taran. | M | Welsh |
| Glinys | Little valley. | F | Welsh |