| Gracianna | A name meaning full of divine grace. |
| Gradon | Gray-haired: son of the Gray family: son of Gregory. |
| Grahya | Grahya means 'to be seen' or 'visible' in Sanskrit, often associated with the concept of being perceived by others. |
| Grainger | A Person who Oversees the Granaries |
| Grainne | Taken from Igraine |
| Grainy | Fulfilled of Grains |
| Grania | An Irish name meaning love seed. |
| Grayson | Son of the reeve or Gray-haired: son of the Gray family: son of Gregory. |
| Grear | A surname meaning a watchful person. |
| Gredel | A name meaning a pearl of wisdom. |
| Greeva | With Sweet Voice; Neck; Neck of Beautiful Voice |
| Greg | Diminutive of Gregory: Watchful. Famous bearer: American actor Gregory Peck, and Pope Gregory I who was also known as St Gregory the Great.; Diminutive of Gregory, meaning 'on the watch'. Often used as an independent name.; Derives From Gregory; Fierce; F |
| Gregor | Derived from the Greek for vigilant. |
| Gremio | The Taming of the Shrew' A suitor to Bianca. |
| Gretel | Pearl. Abbreviation of Margaret. |
| Gricelda | Gray: gray-haired. Italian author Giovanni Boccaccio used the name for an exceptionally patient fictional wife - thus the expression patience of Griselda. |
| Grier | watchful, vigilant |
| Griff | 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. |
| Grigorov | Son of the watchful guardian. |
| Grihalakshmi | Lakshmi of the house |
| Grihitha | A person who is well received. |
| Griorgair | A person who is alert and wary. |
| Griselda | Gray battle maiden |
| Gritik | Someone who is very intelligent. |
| Griva | Girls who has beautiful singing neck |
| Grizela | Scottish form of Grizelda gray haired |
| Groa | A Norse name meaning to grow or sprout. |
| Grosvenor | A name meaning the great hunter. |
| Gruddieu | Mythical son of Muriuel |
| Gruddyeu | Legendary son of Muryel. |
| Gruev | A Bulgarian name meaning a fierce one. |
| Gruhan | One who is a seeker of wisdom. |
| Gryphon | Mythological beast |
| Gryselda | Gray; gray-haired. Italian author Giovanni Boccaccio's used the name for an exceptionally patient fictional wife - thus the expression 'patience of Griselda. |
| GUAIYA | A name meaning a bright star. |
| Guanhumora | Arthur's queen. |
| Guendolina | Derived from white ring or holy moon. |
| GUERIN | A name meaning guard or protector. |
| Guhamaya | Secret Power; Secret Illusion |
| GUIDERIUS | meaning unknown |