Don't know if these have been mentioned yet, sorry for being too lazy to check...
Greek:
Hermes: god of thieves, traffic, messenger of the gods (Roman equivalent: Mercurius or Mercury for you English-speaking Latin-deformers
)
Artemis: goddess of the hunt, the moon, and virginity(sorry 'bout that guys ~grins~ no sex if you worship her!)(Roman equivalent: Diana, known also as Selene and Phoebe although these are sometimes separate goddesses)
Zeus: Lord of the Gods, god of lighting and thunder, and quite a lecher too
(roman eq. Jove, Jupiter)
Apollo: god of the sun and of music, lyrical ballad, the lute etc. (also known as Phoibos), brother of Artemis
Hades: god of the underworld, death. Also known as Dis, Pluto or Dis Pater
Persephone: wife of Hades, goddess of the seasons, of renewal, of harvest (Roman: Proserpina)
Demeter: mother of Persephone, goddess of nature, harvest, grain (also: Ceres)
Hera: wife of Zeus, goddess of marriage and birth etc
Bacchos: Lord of Alcohol
, god of merrymaking, wine, but also insanity (drunkenness). Also: Dionysos
Hekate: threefold goddess of magic, the underworld, ghosts, found on crossroads at night, also goddess of the moon
Hephaistos: blacksmith of the gods, husband of Aphrodite, very ugly; crippled and stooped yet creates things of divine beauty and splendor (Roman: Volcanos)
Aphrodite: goddess of love and beauty (Roman: Venus)
Ares: god of war and battle, lover of Aphrodite (Roman: Mars)
Pallas Athena: goddess of wisdom and learning, but also of the art of war (whereas Ares is the stupid mindless hulk, she is the cunning battle specialist)(Roman: Minerva)
Poseidon: god of the seas and oceans, brother of Zeus Hades Hera etc (R. Neptune or Neptunus)
Gaia: Earth, mother of the titans
Ouranos: heaven, father of the titans
Kronos: Father of Zeus and ruler of the Gods before him, married his sister Rhea
(which incidentally is an anagram of Hera, Zeus's wife)
Eos: Dawn
Eros: child-god of love and sexual desire.
Aesklepios: healer/doctor of the gods, god of medicine
Earth divinities: demeter persephone ceres gaia proserpina nymphs satyrs dryads
Water divinities: poseidon nereus neptunus okeanos amphitrite triton naiads nereids
Sorry this is still incomplete, hope it helps though...more mythologies will follow, although I cannot put all the different spheres and attributes of the gods in them.
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Melusine, Archbabe of the OHF and the LH
Your voice is ambrosia