Geileis - (GAY-leesh) from Old Irish name Gelgeis: gel "shining, bright" + geis "swan". Name of several early Irish princesses. Geillis.

Gemma - (JEM-ma) "precious stone".

Glenna - from a Gaelic word meaning "glen" or "valley". Glynis.

Gobnait - (GOHB-nit) from Old Irish gobha "a smith". Name of early saint and abbess of Munster. One of her miracles was to overcome an army by unleashing her bees on them. Her beehive, a holy relic, was kept for many years by the O'Herlihy family. Anglicized Gobnet.

Gormlaith - (GOORM-la) from Old Irish gorm "splendid" + flaith "queen, sovereignty"; other sources say it means "blue princess", "blue lady" or "illustrious princess". Popular in Middle Ages, name of many queens, including wife of Brian Boru. Sometimes anglicized as Gormghlaith GOR-em-lee, Gormley, Gormly.

Gr�inne - (GROH-nyuh) "sun" or "sun goddess" or "grace, love"; ancient name borne by 16th C. queen. Grania.

Grania - (GRAW-nya) from Old Irish grainne "grain, seed". Prob. name of an ancient Irish grain goddess. In a medieval tale, Gr�inne was betrothed to Finn mac Cumhaill, but eloped with Diarmaid. Grania Mhaol Ni Mhaolmhaigh (Grace O'Malley) was a chieftainess of the Burkes of County Mayo and renowned for her seafaring skills and fought against Queen Elizabeth I's forces. Granna, Grain, Granya, Gr�inne (GRAW-ne) most modern), Grace.

Granuaile - a variation of the name Grania, but also the name of an actual Irish woman who lived from 1530-1603.

Guennola - from the Celtic word meaning "white".

Gwendolyn - "white brow". Pet form: Gwen.

Gweneth - "fair".