The Celtic world included Ireland, Britain, and a large section of the mainland
Aine: Goddess of love and fertility; encouraged human love; has command over crops and animals; daughter of Eogabail
Amaethon: God of agriculture
Anu or Danu/Dana: Mother goddess
Aonghus: God of love; son of Dagda and Boann
Badb: Irish goddess of battle; could influence the outcome of conflict by inspiring fear or bravery in warriors
Balor: The one-eyed god of death, everyone he looked upon was destroyed
Belenus or Bel: Sun god; appears throughout the Celtic world in different forms; Beltaine celebrates him
Boann: Water goddess; mother of Aonghus
Brigantia: Chief goddess of Brigantes tribe; associated with water, war and healing
Brigid/Brigit: Goddess of healing and fertility; said to help women during labor; possibly same goddess as Brigantia
Camulos: God of war mostly worshiped in Belgium areas; said to wield an invincible sword
Ceridwen: Goddess of fertility
Cernunnos: God of wild animals, forest, and plenty; possibly also the god of death; known as the horned one
Cliodhna: Goddess of beauty; her three birds could sing the sick to sleep and heal them
Dagda: The great god; could restore the dead to life
Dian Cecht: God of healing
Don: Welsh version of Dana
Donn: God of the dead
Dylan: Sea god
Epona: Horse goddess
The Formorii: Sea gods; violent and misshapen
Goibhniu: Smith god
Lir: God of sea, healing and magic
Lugh: Sun god (Ireland)
Lugus: Sun god (France and Britain)
Mac Cecht: God of eloquence
Macha: One of the war goddess
Manannan Mac Lir: Sea god; could stir up or soothe the sea
Manawydan: Welsh sea god, extremely similar to Manannan
Morrigan/Morrigu: Goddess of death on the battlefield
Nechtan: Water god
Nemain: Goddess of war
Nemglan: Bird god
Nodens: God of healing; owned magic healing hounds
Ogma: God of eloquence; creating of Ogham, the oldest writing system in Ireland
Taranis: Name means thunderer; Romans equated him to Jupiter; symbol was the wheel
Teutates or Toutatis: Romans equated him to Mars
**Not all inclusive
All information gathered from “The Illustrated Encyclopedia of World Mythology by Arthur Cotterell and Rachel Storm