Aphrodite: Greek - Goddess of love, consort of Adonis.
Aradia: Italian - Queen and teacher of the Witches. Daughter of Diana and Lucifer.
Arianrhod: Welsh - Goddess of reincarnation.
Artemis: Greek & Roman - Goddess of the Moon, twin sister of Apollo (God of the Sun), daughter of Zeus.
Astarte: Greek - Goddess of fertility. Said to be close friends with Isis.
Athena: Greek - Warrior Goddess.
Bast: Egyptian - Goddess of cats.
Brigid/Brid/Brigit: Celtic - Goddess of fertility and inspiration. She is a triple Goddess (Maid, Mother, Crone).
Cerridwen: Welsh - Goddess of the Moon and of harvest. She is also linked to the Dark Mother aspect of the Crone.
Cybele: Greek - Goddess of natural caverns, worshipped on mountain tops. Priests of Cybele, called Galli, would celebrate rites with frenzied dancing and would often voluntarily castrate themselves!
Demeter: Greek - Goddess of the fruitfulness of the Earth. Sister to Zeus.
Diana: Roman - Moon Goddess and Goddess of the hunt. Brother of Lucifer. She shape-shifted into a cat and slipped into her brother's bed. When Lucifer awoke, he found his sister beside him, and from their union Aradia was born.
Dryads, The: Greek - Female tree spirits.
Flora: Roman - Goddess of springtime.
Fortuna: Roman - Goddess of fate.
Freya: Scandinavian - Moon Goddess. Consort of Odin and commander of The Valkyries.
Hathor: Egyptian - Sky Goddess, daughter of Ra and Nut. Protector of women.
Hecate: Greek - Moon Goddess, Goddess of the underworld, and Goddess of Magick. Associated with crossroads and the Crone.
Hera: Greek - Goddess of marriage. Consort of Zeus.
Hestia: Greek - Goddess of domestic fire (as in household fire for warmth/cooking), and of the home in general.
Inanna: Sumerian - Queen of Heaven.
Isis: Egyptian - probably the post popular of all Goddesses. She is a triple Goddess (Maid, Mother, Crone). Daughter of Earth God Geb and sky Goddess Nut, sister Nephthys, brothers Horus the Elder, Osiris (who she married) and Set. Set murdered Osiris and cut his body into 14 pieces, which he cast away. Isis searched and found 13 pieces but could not find the phallus. She reconstituted the 13 pieces and magically restored the phallus. She formed a union with the reformed body and bore a son - Horus the younger.
Kali: Hindu - Goddess of destruction and creation. Often called Kali-Ma ("the Back Mother"). Consort of Shiva.
Ma'at/Mayet: Egyptian - Goddess of justice, truth and the law.
Morgan: Celtic - Goddess of Water and Magick. From the Arthurian legend - Arthur's half-sister Morgan le Fay.
Muses, The: Greek - Daughters of Zeus, Goddesses of inspiration and memory.
Nephthys: Egyptian - Goddess of Midwives, daughter of Geb and Nut. Sister of Isis, and brothers Horus the Elder, Osiris and Set. Consort of brother Set but bore no children by him. Conceived Anubis by brother Osiris.
Norns, The: Celtic - Guardians of the sacred tree Yggdrasil. The three sisters of the Wyrd. Responsible for weaving and manipulating the web of past, present, and future fate.
Nut: Egyptian - Sky Goddess. Twin and lover of Geb (the Earth). Mother to Isis, Osiris, Horus the Elder, and Set.
Persephone: Greek - Goddess of the underworld. Daughter of Demeter.
Selene: Greek - Goddess of the Moon, sister of Helios (the Sun).
Valkyries, The: Scandinavian - Women warriors who brought the souls of those slain in battle to Odin. Commanded by Freya.
Venus: Roman - Goddess of love.
Vesta: Roman - Goddess of fire, both domestic and ritual.
For a very comprehensive list read, The Witches Goddess -Janet & Stewart Farrar.