Ireland was named after the goddess,
Since Ériu is represented as goddess of Ireland, she is often interpreted as a modern-day personification of Ireland, although since the name Ériu is the Old Irish form of the word Ireland, her modern name is often modified to Éire or Erin to suit a modern form.
Ériu, Banba and Fódla are interpreted as goddesses of sovereignty. According to the seventeenth-century Irish historian Geoffrey Keating (Seathrún Céitinn), the three sovereignty goddesses associated with Éire, Banbha and Fódla were Badb, Macha and The Morrígan.
This was the Morrígan. Commonly known as the "Phantom Queen", the Morrígan was a feared Celtic deity and the goddess of both death and war. As one of Ireland's most powerful goddesses, she appears as both a single being and a triple goddess, forming a trio of sisters who protect both destiny and prophecy.
Cerridwen (Irish) – Keeper of the cauldron, goddess of the moon, magic, agriculture, poetry, music, art and science. Her name means “chiding love.” Other common spellings of her name include Cerridwen, Caridwen and Keridwen.
Áine (Ir. "brightness, glow, joy, radiance; splendour, glory, fame") is sometimes mistakenly equated with Danu as her name bears a superficial resemblance to Anu. "Aynia", reputedly the most powerful fairy in Ulster, may be a variant of the same figure.
In some Irish myths, Clíodhna is a goddess of love and beauty, and the patron of County Cork. She is said to have three brightly coloured birds who eat apples from an otherworldly tree and whose sweet song heals the sick people.
Brigid, which means “exalted one,” was a Celtic goddess born of the all-powerful god Dagda and wife to one of the mythological Celtic kings. She was a goddess of many elements, including fire, warfare, crafts, poetry, and wisdom. Brigid is also the goddess of childbirth and children, making her the patron of midwifery.
Belisama – (Celtic) Goddess of light and fire, the forge and of crafts. She is the wife of the god Belenus (Beli) and the Goddess of the Mersey River.
Caer Ibormeith is the goddess of sleep and dreams. She's also the wife of Aengus and is the maiden who is turned into a swan in the story of him finding love. Once Aengus recognised her, despite her being a swan, he was also turned into a swan and they flew away together.
Arianrhod Celtic- Goddess of the moon and stars,. Arianrhod, Celtic Welsh Star Goddess of Reincarnation, is known as “Silver Wheel”, “Silver Circle”, “High Fruitful Mother”, “Star Goddess”, and Sky Goddess. She is considered by many to be a Moon Goddess.
Brigit. Brigit is the daughter of The Dagda and the goddess of protection and wisdom in Celtic mythology. She is like the Greek Athena, and many believe she is the inspiration for Saint Brigid in the Christian faith.
Scáthach, (Gaelic: “The Shadowy One”), in Celtic mythology, female warrior, especially noted as a teacher of warriors. Scáthach was the daughter of Árd-Greimne of Lethra. She lived on an island (thought to be the Isle of Skye) in an impregnable castle, the gate of which was guarded by her daughter Uathach.
In many old Irish tales, Celtic goddesses Badb, Macha, and Nemain are named as the three sisters who can take shape individually as well as appear as one single, independent being, the 'great queen' or 'phantom queen', the Morrigan.
Ness (Irish: Neasa, Nessa, Old Irish: Neas, Ness), also called Nessa, is a princess of the Ulaid and the mother of Conchobar mac Nessa in the Ulster Cycle of Irish mythology.
Danu, also spelled Anu, or Dana, in Celtic religion, the earth-mother goddess or female principle, who was honoured under various names from eastern Europe to Ireland.
Texts describe her homeland as Scotland (Alpeach); she is especially associated with the Isle of Skye, where her residence Dún Scáith ("Fortress of Shadows") stands. She is called "the Shadow" and "Warrior Maid" and is the rival and sister of Aífe, both of whom are daughters of Árd-Greimne of Lethra.
Ceridwen is regarded by many modern pagans as the Celtic goddess of rebirth, transformation, and inspiration.
An illuminating exploration of Ireland's ancient dark goddess—the beloved “phantom queen” of the Celtic world—with practices for modern-day devotees. The Morrigan is one of Pagan Ireland's most famous--and notorious--goddesses.
Danu is the most ancient of the Celtic gods. She was referred to as the mother of the Irish gods, which indicates that she was a mother goddess. In this guise she probably represented the earth and its fruitfulness.
Blodeuwedd is known as the Goddess of flowers, emotions, the wisdom of innocence and initiation ceremonies. She is also known as the Ninefold Goddess of the Western Isles of Paradise. Blodeuwedd's tale is the last of the four branches of the Mabinogion.
Boudica (also written as Boadicea) was a Celtic queen who led a revolt against Roman rule in ancient Britain in A.D. 60 or 61.
Sabina Mary Higgins (née Coyne; born 1941 or 1942) is an Irish actress, political activist and the wife of the current president of Ireland, Michael D. Higgins.
You may not recognise the name Bridget O'Donnel, but she is one of the most recognisable women in Irish history. In December 1849 her image (pictured in the episode artwork and here) appeared in The Illustrated London News. Over the following decades she became the face of the Great Famine.