A great many of our Wiccan Goddesses and Gods in fact come from the Roman/Greek pantheon.
It's ironic that a religion like Wicca, whose forerunner was destroyed by the Romans, has claimed the conquerors' gods for itself.
Nonetheless, the Roman pantheon fills out the family of divinities quite well. Probably because the Romans borrowed so many deities from other cultures too.
And since the Romans were technically pagans too, I guess it makes some sense.
We also take many Pagan Goddess names from the Celtic and the Egyptian religions.
Here is a list of some of the most common pagan Goddess names. I've been in Circles that have invoked each of this Wiccan Goddesses at one time or another, so I know they are actively used in Wiccan Goddess worship.
Akhilandeshvari - Hindu Goddess Never-Not-Broken
Amaterasu - Japanese sun Goddess
Annapurna - Hindu Goddess of Food and Nourishment
Aphrodite /Venus - Greek Goddess of love and beauty
Artemis/Diana - Greek/Roman Goddess of the hunt, virginity, and childbirth, twin sister of Apollo, and an Olympian, often associated with the moon
Astarte - Greek Goddess of fertility, sexuality, and war
Athena - Greek Goddess of wisdom, defensive and strategic wars
Bast - Egyptian solar and war Goddess (in the form of a cat)
Baubo - Greek Goddess of mirth, jests, and bawdy humour
Brighid - Celtic Goddess of poetry, healing, and crafts (especially smith-work), holy wells and eternal flames
Cerridwen - Celtic Goddess of transformation, of the cauldron of inspiration, of prophecy
Cybele - Greek Earth Mother
Danu - Irish Mother Goddess
Demeter - Greek Goddess of the harvest and of grain, mother of Persephone
Durga - Hindu Great Goddess, Divine Mother
Eos - Greek Goddess of the dawn
Ereshkigal - Mesopotamian Goddess of Darkness, Death, and Gloom
Flora - Roman Goddess of flowers
Fortuna - Roman Goddess of fortune
Freya or Freyja - Norse Goddess of fertility, sexual liberty, abundance, and war
Frigg - Norse Goddess of marriage, household management, and love, Queen of Heaven, and wife of Odin
Gaia/Earth Mother - The Greek Goddess Gaia is the primordial Goddess of earth, mother and grandmother of the first generation of Titans
Hathor - Egyptian Goddess of the Milky Way, Mother Goddess, Goddess of childbirth and death.
Hecate - Greek Goddess of witchcraft and magick, crossroads, and the harvest moon
Hestia - Greek Goddess of the hearth and domestic life
Hel - Norse Goddess daughter of Loki and the giantess Angrboda, Queen of the Dead
Hera - Roman Goddess of the Hearth, of women, and of marriage
Inanna - Sumerian Goddess of sexual love, fertility, and warfare
Isis - Egyptian Mother Goddess, matron of nature and magick, Goddess of creativity and the underdog
Ishtar - Mesopotamian Goddess of sexual love, fertility, and war
Juno - Roman Queen of the Gods and Goddess of matrimony
Kali - Hindu Goddess of Time and Death, slayer of demons, protectress (As Kali Ma: Divine Mother Goddess)
Kore - Greek Maiden Goddess of bountiful Earth (See also Persephone)
Kuan Yin , Kwan Yin Ma , Quan Yin - Chinese Goddess of Mercy and Compassion
Lakshmi - Hindu Goddess of Wealth and Fertility (Goddess as Mother/Sustainer)
Lalita - Hindu Goddess of Beauty
Luna - Roman Goddess of the Moon
Ma'at - Egyptian Goddess, personified concept of truth, balance, justice, and order
Mary - Mother Goddess, Queen of Heaven, Goddess of Femininity
Maya - Hindu Goddess of Illusion and Mystery
Minerva - Roman Goddess of wisdom and war
Morrigan - Celtic war Goddess
Nut - Egyptian Goddess of heaven and the sky and all celestial bodies
Parvati - Hindu Divine Mother, the embodiment of the total energy in the universe, Goddess of Power and Might
Pele - Hawai'ian volcano Goddess, Destroyer and Creatrix
Persephone - Greek Goddess daughter of Demeter, Queen of the Underworld, also a grain-Goddess, Maiden Goddess
Radha - Hindu Divine Mother
Rhiannon - Celtic Goddess of the moon
Rosmurta - Celtic/Roman Goddess of abundance. She is also the Goddess of Business Success.
Saraswati - Hindu Goddess of Knowledge, the Arts, Mathematics, Education, and cosmic Wisdom (Creatrix)
Sedna - Inuit Goddess of the Sea and Queen of the Underworld
Selene - Greek Goddess of Moon
Shakti - Hindu primordial cosmic energy, Great Divine Mother
Shekina - Hebrew Goddess of compassion in its purest form (feminine aspect of God)
Sita - Hindu Goddess representing perfect womanhood
Sol - Norse Sun Goddess
Sophia - Greek Goddess of wisdom
Spider Woman - Teotihuacan Great Goddess (Creatrix)
Tara - Hindu, Mother Goddess, the absolute, unquenchable hunger that propels all life.
Tara, Green - Buddhist female Buddha, Tibetan Buddhism - compassion, liberation, success. Compassionate Buddha of enlightened activity
Tara, White - Buddhist Goddess known for compassion, long life, healing and serenity; also known as The Wish-fulfilling Wheel, or Cintachakra
Tara, Red - fierceness, magnetizing all good things
Tara, Black - power
Tara, Yellow - wealth and prosperity
Tara, Blue - transmutation of anger
Tiamat - Mesopotamian dragon Goddess, embodiment of primordial chaos (the Velvet Dark)
Uma - Hindu Goddess of power, the personification of light and beauty, embodying great beauty and divine wisdom
Vesta - Roman Goddess of the hearth
Voluptas - Roman Goddess of pleasure
Yemaya - Yoruban Mother Goddess, Goddess of the Ocean
White Buffalo Calf Woman - Lakota Goddess
Many times you'll hear these used as names of Wiccan Goddesses, but accurately speaking they are more like titles that can be used for multiple Wiccan Goddesses.
Crone Goddess - Title used for Wiccan Goddesses of death, rebirth, and wisdom, such as Cerridwen, and Hecate. Signifying wisdom, mystery, the Gates between the Worlds, etc.
Earth Goddess - Title used for embodiments of the Earth, such as Greek Goddess Gaia, Demeter, Cybele.
Great Mother Goddess - Creatrix existing in most religions, under various names such as Demeter, Gaia, Isis, Parvati (also Great Goddess, Great Mother, Divine Mother).
Moon Goddess - Title used for Goddesses of the Moon, such as Luna, Selene, and Artemis.
Mother Goddess - Title used for the bountiful embodiment of the Earth (see Earth Goddess). Signifying life, procreation, fecundity, abundance, etc.
Maiden Goddess - Title used for Goddesses who personify the youthful energy of spring, such as Kore, Diana (also Virgin Goddess)
Queen of Heaven - Title used for Virgin Mary, Asherah, and possibly other Great Mother Goddesses
Queen of the Underworld - Title used for Ereshkigal, Persephone, and possibly other Death Goddesses
Star Goddess - Primary Goddess, Creatix of All
Triple Goddess - Worshipped since the 7th millennium BC as the Goddess in three aspects—as a young woman, a birth-giving matron, and an old woman (Maiden-Mother-Crone). Passed down through the ages into virtually all religions:
- Parvati-Durga-Uma (Kali) in India
- Ana-Babd-Macha (the Morrigan), and Brighid in Ireland
- Hebe-Hera-Hecate, the three Moerae, the three Gorgons, the three Graeae, and the three Horae in Greece
- the Fates or Fortunae in Romans
- the Norns to the Vikings
- Diana Triformis to the druids
~ The Woman's Encyclopedia of Myths and Secrets, p 1018.
Virgin Goddess - Title used for Goddesses who are solitary, choosing to stand alone, without consorts. Signifying Spring, beginnings, innocence, purity, etc. See also Maiden Goddess.