Megaera, one of the Furies, goddesses of Vengeance and Retribution
Melinoe who presided over the property offered to the ghosts of the dead in the Underworld
Melpomene daughter of Zeus and Mnemosyne, muse of tragedy
Menoetes an Underworld spirit who herded the cattle of Hades
Menoetius, the Titan god of violent anger and rash action
Mermaids, supernatural sea nymphs
Merope goddess of the constellation Pleiades
Mesembria goddess of noon
Metope (one of the Naides, a fresh water nymph)
Minthe (one of the Naides, a fresh water nymph)
Mnemosyne was the Titan goddess of memory and the inventor of words
Momus the spirit of mockery, blame, censure and stinging criticism
Mormo a fearsome Underworld spirit or spirits in the train of Hecate
Moros the spirit of doom
Morpheus the god of dreams, who takes shape of humans
Mousika or Musica goddess of the morning hour of music and study
Roman Gods and Goddesses Names and Roles
Maia, Goddess of fertility and Spring
Mana Genita, goddess of infant mortality
Manes, the souls of the dead who came to be seen as household deities.
Mania, the consort of the underworld god Mantus
Mantus, a god of the dead
Mars the God of War and father of Romulus, the founder of Rome
Mater Matuta, goddess of dawn and childbirth, patroness of mariners.
Meditrina, goddess of healing
Mefitis or Mephitis, goddess and personification of poisonous gases and volcanic vapours.
Mellona or Mellonia, goddess of bees and beekeeping.
Mercury, messenger of the gods and bearer of souls to the underworld
Mena, Goddess of menstruation
Mens, Goddess of the mind and consciousness
Minerva, goddess of wisdom, war, the arts, industries and trades, and one of the Dii Consentes.
Mithras, god of soldiers, light, truth, and honor
Molae, daughters of Mars, probably goddesses of grinding of the grain.
Moneta, Titan goddess of memory, equivalent to the Greek Mnemosyne
Mors, god of death and equivalent of the Greek Thanatos.
Morta, minor goddess of death and one of the Parcae (Roman equivalent of the Moirai). The cutter of the thread of life, her Greek equivalent was Atropos.
Murcia or Murtia, goddess of sloth and laziness
Muta was the Goddess of silence
Mutunus Tutunus, a phallic god.