| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 441 | Gorasgwrn | Welsh | Legendary daughter of Nerth. | F | |
| 442 | Gorawen | Welsh | Joy. | F | |
| 443 | Goreu | Welsh | Legendary son of Custenhin. | M | |
| 444 | Gormant | Welsh | Legendary son of Rica. | M | |
| 445 | Gorsedd | Welsh | From the mound. | M | |
| 446 | Govan | Welsh | Legendary son of Caw. | M | |
| 447 | Govannon | Welsh | Legendary son of Don. | M | |
| 448 | Gower | Welsh | Pure. | M | |
| 449 | Gowyr | Welsh | Pure. | M | |
| 450 | Granwen | Welsh | Legendary son of Llyr. | M | |
| 451 | Greid | Welsh | Legendary son of Eri. | M | |
| 452 | Griff | Welsh | Fighting chief; fierce. The fierce Gryphon of Greek mythology and medieval legend was a creature with foreparts of an eagle and hindquarters of a lion. | M | |
| 453 | Griffen | Welsh | Fighting chief; fierce. The fierce Gryphon of Greek mythology and medieval legend was a creature with foreparts of an eagle and hindquarters of a lion. Note: This Database is Copyright 2000, Muse Creations Inc. | M | |
| 454 | Griffeth | Welsh | Red haired. | M | |
| 455 | Griffin | Welsh | Strong in faith. | M | |
| 456 | Griffith | Welsh | Fighting chief, fierce, strong warrior or lord. Derived from the Welsh name Groffudd. Common as both a surname and a given name. | M | |
| 457 | Grigor | Welsh | On the watch. | M | |
| 458 | Groffudd | Welsh | Strong warrior, lord. | M | |
| 459 | Gruddyeu | Welsh | Legendary son of Muryel. | M | |
| 460 | Gruffen | Welsh | Fierce lord. | M | |