| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 501 | Gelasius | Greek | Laughter. | M | |
| 502 | Gene | Greek | Diminutive of Eugene: Well born. | M | |
| 503 | Geordie | Greek | Farmer. | M | |
| 504 | Georg | Greek | Farmer. | M | |
| 505 | George | Greek | From 'georgos' meaning tiller of the soil, or farmer. Famous bearer: St George, patron saint of England, who struggled with a fire breathing dragon symbolizing the devil. | M | |
| 506 | Georges | Greek | Farmer. | M | |
| 507 | Georget | Greek | Farmer. | M | |
| 508 | Gergely | Greek | Vigilant. | M | |
| 509 | Gergor | Greek | Vigilant. | M | |
| 510 | Geronimo | Greek | Sacred name. Variant of the saint's name Jerome. 19th Century American Indian Geronimo was one of the last of the Apache warrior chiefs. | M | |
| 511 | Geryon | Greek | Monster killed by Hercules. | M | |
| 512 | Gheorghr | Greek | Farmer. | M | |
| 513 | Giles | Greek | Shield bearer. | M | |
| 514 | Gilles | Greek | Shield bearer. | M | |
| 515 | Glaucus | Greek | Son of Minos. | M | |
| 516 | Goran | Greek | Farmer. | M | |
| 517 | Gorka | Greek | Farmer. | M | |
| 518 | Greg | Greek | Diminutive of Gregory: Watchful. Famous bearer: American actor Gregory Peck, and Pope Gregory I who was also known as St Gregory the Great. | M | |
| 519 | Gregg | Greek | Diminutive of Gregory: Watchful. Famous bearer: American actor Gregory Peck, and Pope Gregory I who was also known as St Gregory the Great. | M | |
| 520 | Gregoire | Greek | Vigilant. | M | |