Abarta
(Irish) "Doer of Deeds". Mischievous god of the Tuata de Danann.
Abnoba
(Gaul) Goddess of the hunt (similar to the Roman Diana)
Achall
In Irish legend, Achall was a loving sister who died of sorrow when her brother was killed in battle.
Achtan
The Irish heroine who bore Cormac, the king.
Achtland
In Celtic legend, this mortal queen could not be satisfied with human men, so she took a giant as her spouse.
Adsagsona
Celtic goddess of the underworld and of magic.
Aebh
Wife of Lêr.
Aed
Son of Lêr.
Aeifé (Aife)
Third wife of Lêr. She is the evil stepmother of Aedh, Conn, Fiachra, and Finnguala, who transforms them into talking swans when her anger overcomes her. Her deed is discovered; she is transformed into a vulture, and made to stay eternally in the winds.
Aeron
(Wales) God of war.
Æs Sídhe
Means "the folk of the mounds", the fairies.
Ailill
(Irish) Brother of Eochaidh, who was married to Etain former goddess wife to Midir who had been changed into a human because of her jealousy. Ailill was deeply in love with his brother's wife and slowly wasting away because it was unrequited. In order to save his life Etain promised to sleep with him, but this never came to fruition because Ailill fell into an enchanted sleep.
Ainé
1. Queen of the fairies. Other fairy queens were Aoibhinn, Cliodna, and Aynia.
2. Irish goddess of love and fertility. Daughter of Eogabail.
Airmed
A goddess of the Tuatha de Danaan of Ireland. She was the goddess of witchcraft and herb lore.
Alator
A war god worshipped in Britain.
Amaethon
(Britain) God of agriculture. Name means "laborer" or "ploughman".
Andraste
(Britain) Andraste is a warrior goddess, the goddess of victory.
Angus (Mac Oc)
Gaelic god of youth and god of love and beauty. He had a magical harp of gold whose music was so sweet that no one could hear and not follow it.
Annwn
(Britain) The otherworld, an idyllic land of peace and plenty. It was ruled by Arawn, owner of a pack of hounds (the "hounds of hell") that were believed to hunt at night for human souls.
Anu
One of the ancestor goddesses of Ireland. Some mythographers claim she is the same goddess as Aine, others say Danu.
Aoifa
(Irish) Warrior princess, sister of Scathach (teacher to Cuchulainn in the arts of war). Aoifa became Cuchulainn's lover and bore him a son, Conlai, who fate decreed would be killed by his father.
Aonghus
(Irish) Son of the god Dagda and the water goddess Boann. He was the Irish love god.
Ardwinna
A Celtic goddess of the forests.
Arianrhod
(Wales) The goddess of the moon. A magician goddess, who like Artemis lived in orgiastic maidenhood surrounded entirely by women, although it is also said she lived a wanton life, mating with mermen. She was the most powerful of the children of the mother goddess Don. Her palace is the Corona Borealis.
Arnamentia
(Britain) Goddess of spring water.
Artio
Celtic goddess of wildlife, who was usually depicted in the form of a bear.

Badb
(Ireland) One of the three war goddesses known collectively as the Morrigan. She was depicted in the form of a raven with a crimson (bloody) mouth.
Balor
(Ireland) One-eyed god of death. One of the Fomorii. His one eye destroyed whoever he looked upon and his eyelid was so huge and heavy it had to be held up by four servants.
Banba (Banbha)
Irish earth goddess, she was part of the triad that included Eriu and Folta (Fodla).
Bebhionn
An Irish underworld goddess and a patron of pleasure.
Bedwyr
(Wales) A one-handed warrior who later became known as Sir Bedivere of King Arthur's court.
Belatucadros
(Britain) God of war and of the destruction. His name means "fair shining one". The Romans equated him with their god Mars.
Belenus (Belenos): Bel or Beli to the Welsh; Bile to the Irish.
(Gaul) God of healing and light, and referred to as "The Shining One". He is in charge of the welfare of sheep and cattle. His wife is the goddess Belisama. They can be compared with Apollo and Minerva.
Beli Mawr
(Wales) Welsh ancestor deity.
Belisama
Goddess of light and fire, the forge and of crafts. She is the wife of the god Belenus.
Bheara
(Ireland/Scotland) [Also Cailleach Bheur {see Cailleach below} or Cally Berry] She controlled the weather. When a handsome young man was kind to her, she changed herself from an ugly old hag into a beautiful young woman and rewarded him with her favors. She is also considered to be the "White Lady" and the wife of Manannan the Sea God; you can see her in the sunlight sparkling on the water.
Bilé
Gaelic god of the underworld from whom sprang the first men, and considered by some to be the father of the gods.
Blathnat
Wife of King Cu Roi. She fell in love with Cuchulainn and betrayed her husband by showing Cuchulainn how to penetrate her husband's castle. In the ensuing battle Cuchulainn killed Cu Roi and abducted Blathnat and Cu Roi's bard, Fer Cherdne. When they stopped for the night on a cliff top, Fer Cherdne revenged his king by grabbing Blathnat and jumping off the cliff to their deaths.
Blodeuedd
Her name means "born of flowers". She was conjured up from the blossoms of broom, meadowsweet, and oak by Math and Gwydion to be Lleu's wife (his mother, Arianrhod, had decreed that he should marry no mortal woman). When she proved an unfaithful wife she was turned into an owl by Gwydion.
Boann
(Irish) Boann is the goddess of rivers and fertility. She was the mother of Aonghus, the god of love.
Bobd the Red
A son of Dagda and king of the Tuatha Dé Danann.
Boibhniu
Celtic god of smiths.
Bors
A king of Gaul.
Borvo
(Gaul) God of healing.
Brân
(Britain) Called Bendigeidfran by the Welsh. God of the underworld. Brother of Branwen.
Branwen
Welsh love goddess.
Bres
(Gaelic) God of fertility and agriculture; one of the first kings of the Tuatha De Danaan.
Bride
Scotland's version of the Celtic Irish Brigid.
Brigandu
Celtic France version of the Celtic Irish Brigid.
Brigantia
Celtic Briton version of the Celtic Irish Brigid.
Brighid (Brigit)
(Gaelic) Brighid was the goddess of fertility, therapy, metalworking, and poetic inspiration. She is the wife of Bres. She is known as Caridwen (Cerridwen) in Wales. There are three sisters by the name of Brigit in Irish myth (daughters of In Dagda) who are the patron-goddesses of learning (poetry), healing and smithcraft.
Bronach
An Irish goddess of cliffs.