Gaiar

Son of Manannan Mac Lir. (Irish)

Gebann

Father of Cliodna, Irish Goddess of Beauty. (Irish)

The Genii Cucullati

The Hooded Deities,triplicity aspect, associated with fertility and healing, May have had direct connections with the war God in his healing capacity.

Gilfaethwy

Son of Don. (Welsh)

Glanis

Eponymous spirit of the Sacred springs in the town of Glanum in Provence. Then there was the Glanicae, a triad of local Mother Goddesses associated with healing springs.

Gluneu

Son of Taran (Welsh)

Gofannon

- Son of Don, his name resembles the Irish Gobhniu. (Welsh)

Goibniu

The Divine Smith. Smith God, Founder of Artistry and Handicraft. He could make a sword or spear by 3 blows of his hammer. Fashions weapons for the otherworld Gods and presides over the otherworld feast. Also thought to be the same as Luchta and Creidhne, Luchta being the wright and Creidhne the metalworker. Each God make a different part of the weapons for Lugh during the Second battle of Magh Tuiredh. (Irish)

Goidel

Progenitor of the Goidelic or Gaelic Celts (Irish, Manx, and Scots). Son of Niul and Scota.

Grannos

Gaulish Sun God and God of Healing. Grannos could be cognate with the word for Sun - grian.

Grian

A solar female deity (Irish).

Grianainech

Synonym for the God Ogma, meaning 'Sunny Countenance'. (Irish)

Gwawl

'Light', son of the Goddess Clud. (Welsh)

Gwern

Son of Branwen, daughter of Llyr and of Matholwch of Ireland. (Welsh)

Gwydion

Son of Don. Referred to as the best storyteller in the world. God of Wisdom.He is associated with magic and shapeshifting. He appears to be the father of his sister Ara(i)n(r)h(r)od's son, Lleu Llaw Gyffes. He is also the father of Dylan. (Welsh)

Gwyethyr

God of the upper world, a counterpart to Gwynn ap Nudd.(Welsh)

Gwynn ap Nudd

God of the underworld believed to reside under Glastonbury tor.