| N A M E | O R I G I N | M E A N I N G |
| Gregson | English | Son of Greg. Surname. |
| Greguska | Czechoslovakian | Watchful. |
| Greid | Welsh | Legendary son of Eri. |
| Gremian | Anglo-Saxon | Enrages. |
| Grendel | Anglo-Saxon | Legend name. |
| Grenjad | Norse | Son of Hermund. |
| Grenville | English | Variant of Granville: An English surname based on a French place name, meaning big town. Used both as surname and given name. |
| Gresham | English | from the grazeland |
| Grey | English | Gray-haired. |
| Greyfell | Norse | Sigurd's horse. |
| Greyson | English | Gray-haired: son of the Gray family; son of Gregory. |
| 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. |
| Griffen | Welsh | Variant of Griffin. Strong in faith. |
| Griffeth | Welsh | Red haired. |
| Griffin | Greek | Mythological Beast |
| Griffith | Welsh | fierce chief; ruddy |
| Grigor | Greek | Vigilant. |
| Grigori | Russian | Watchful. |
| Grigorii | Russian | Watchful. |
| Grigorov | Greek | Vigilant. |
| Grim | Norse | Son of Njal. |
| Grimbold | Anglo-Saxon | Fierce bold. |
| Grimkel | Norse | Son of Ulf. |
| Grimm | Anglo-Saxon | Fierce. |
| Grimme | Anglo-Saxon | Fierce. |
| Grindan | Anglo-Saxon | Sharp. |
| Grioghar | Irish | Watchful. |
| Griorgair | Scottish | Vigilant. |
| Gris | Norse | A man freed by Skallagrim. |
| Grisha | Russian | Watchful. |
