It is important to note that modern day Wiccans, Pagans and Witches generally focus on the major aspect of The One, Goddess and God without breaking deity down into the many subsets shown here.
ANGUS MAC OG (Makohk)
One of the Tuatha De Danann. God of youth, love and beauty.
God of the underground kingdom of the dead. Revenge, terror and war.
BEL /BELENUS / BELINUS / BELENOS / BELIMAWR
Closely connected to the Druids. Science, healing, hot springs, fire, success, prosperity, purification, crops, vegetation, fertility. A sun and fire god.
BRAN THE BLESSED / BENEDIGEIDFRAN (Bran)
God of prophecy, the arts, leaders, war, the sun, music, writing.
CERNUNNOS (Ker-noo-nos) / CERNOWAIN / CERNENUS / HERNE THE HUNTER
God of nature and all wild things. Virility, fertility, animals, physical love, nature, woodlands, reincarnation, crossroads, wealth, commerce, warriors.
Protection, warriors, knowledge, magick, fire, prophecy, weather, reincarnation, the arts, initiation, the sun, healing, regeneration, prosperity and plenty, music, the harp.
Physician-magician of the Tuatha. God of healing, medicine, regeneration, magick, silver working.
DON / DOMNU (Dom-noo) ((Ireland and Wales)) *God*
Ruler of the land of the dead and entrances to the otherworld. Control of the elements, eloquence.
God of the sea.
GOIBNIU / GOFANNON / GOVANNON (Gov-ann-on)
God of blacksmiths, weapon makers, jewelry making, brewing, fire, metalworking.
The Lord. The horned god, (Not Satan) lord of winter, harvest, land of the dead, the sky, animals, mountains, lust, powers of destruction and regeneration. The male aspect of creation.
THE GREEN MAN
See Cernunnos. A deity of trees and green growing things of earth. God of the woodlands.
Greatest of the enchanters, warrior-magician. Illusion, changes, magick, the sky, healing.
GWYNN AP NUDD (Gwin ap Neethe)
King of the fairies and the underworld.
Opposite of Gwynn ap Nudd. King of the upper world.
HERNE THE HUNTER
See Cernunnos, The Horned God, and Green Man.
THE HORNED GOD
Lord of the wild hunt. The masculine, active side of nature. Earth father, growing things, wild animals, alertness, fertility, desire, physical love, agriculture, flocks, brewing.
LLYR (Thleer) / LEAR / LIR (Hlir)
God of the sea and water.
LUGH (loo or loog)
God of skills. Druid, physician, smithing, war, magick, commerce, reincarnation, lightning, water, arts and crafts, manual arts, journeys, martial arts, poets, musicians, historians, sorcerers, healing, revenge, initiation, prophecy.
MANANNAN MAC LIR (Mannan-awn maklir)
God of the sea, navigators, storms, weather at sea, fertility, sailing, weather forecasting, magick, arts, merchants and commerce, rebirth.
MATH MATHONWY (Math math-on-oo-ee)
God of sorcery, magick, enchantment.
MERLIN / MERDDIN / MYRDDIN (Meer-din)
Great sorcerer, Druid, magician. Illusion, shape-shifting, herbs, healing, woodlands, nature, protection, counseling, prophecy, divination, psychic abilities, foreseeing, crystal reading, tarot, magick, rituals, spells, incantations, artisans and smiths.
NUADA / NUDD/ NODONS
Similar to Neptune. God of the water, oceans, fishing, the sun, sailing.
Similar to Hercules.
Ruler of the underworld.
God of the bards. Poetry, wisdom, wizards, music, knowledge, magick.