Greek Mythology Monsters

Medusa

Creature Type: Gorgon

Origin: Libya / the sea

Defeated By: Perseus

Minotaur

Creature Type: Bull-man hybrid

Origin: Crete, Labyrinth

Defeated By: Theseus

Hydra

Creature Type: Multi-headed serpent

Origin: Lerna, Argos

Defeated By: Heracles

Cerberus

Creature Type: Three-headed hound

Origin: Underworld

Defeated By: Heracles

Chimera

Creature Type: Lion-goat-serpent hybrid

Origin: Lycia, Anatolia

Defeated By: Bellerophon

Cyclops Polyphemus

Creature Type: Cyclops

Origin: Sicily

Defeated By: Odysseus

Scylla

Creature Type: Sea monster

Origin: Strait of Messina

Defeated By: Not slain; evaded

Sphinx

Creature Type: Winged lion-woman hybrid

Origin: Thebes, Greece

Defeated By: Oedipus

Nemean Lion

Creature Type: Giant lion

Origin: Nemea, Argolis

Defeated By: Heracles

Stymphalian Birds

Creature Type: Man-eating birds

Origin: Lake Stymphalia, Arcadia

Defeated By: Heracles

Colchian Dragon

Creature Type: Sleepless dragon

Origin: Colchis, Black Sea

Defeated By: Medea and Jason

Ladon

Creature Type: Dragon-serpent

Origin: Garden of the Hesperides

Defeated By: Heracles

Typhon

Creature Type: Primordial monster

Origin: Cilicia, Anatolia

Defeated By: Zeus

Echidna

Creature Type: Half-woman, half-serpent

Origin: Underground cave

Defeated By: Argus Panoptes

Charybdis

Creature Type: Sea whirlpool monster

Origin: Strait of Messina

Defeated By: Not slain; evaded

Geryon

Creature Type: Three-bodied giant

Origin: Island of Erytheia

Defeated By: Heracles

Cacus

Creature Type: Fire-breathing giant

Origin: Aventine Hill, Rome

Defeated By: Heracles

Cetus

Creature Type: Sea monster

Origin: Aethiopian coast

Defeated By: Perseus