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Cacus: Cacus was a fire-breathing giant in Greek and Roman mythology.

Cacus - Symbolises chaos and the destructive power of fire, ultimately subdued by heroic order through Hercules.

Cacus

Cacus - Symbolises chaos and the destructive power of fire, ultimately subdued by heroic order through Hercules.

Quick Story →

the legend in five swipes.

Cacus was a fire-breathing giant in Greek and Roman mythology. He terrorised the Aventine Hill before Rome's founding. His reign ended when Hercules defeated and killed him.

Where does the story of Cacus begin?

How did the story of Cacus change over time?

Cacus: What Manner of Being?

What do different regions call Cacus?

What parallels exist to Cacus in other traditions?

Cacus in Modern Culture

Interesting Fact

Cacus is one of the few mythological giants whose fire-breathing ability directly connects him to the elemental forces of both creation and destruction.

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Quick Creature Info

Associations:

Element: FireFlames

Our Mythic Legendary Rating:

Mystical Awakening
Mystical Awakening rating

Also Sometimes Known As:

Caccus

Habitat:

Lair in a cave on the Aventine HillCaveEarthTerrestrialAncient ItalyTerrorised the area before the founding of RomeHilly regionAventine HillAventine region

Supernatural Powers:

Fire breathing

Physical Attributes:

fire-breathingmassive buildfiery auracolossal statureintimidating presence

Abilities:

Immense strengthintimidating presenceControl over firePhysical power

Behavior:

Aggressive and malevolentTerrorized local populations around the Aventine Hill

Weaknesses:

Mortality and vulnerability to heroic combat

Lore:

Antagonist/MonsterGreek and RomanSymbolises chaos and the destructive power of fire, ultimately subdued by heroic order through Hercules

Related Creatures, Tales or Lore

References

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The Mythological Creatures Book Series

Yōkai, Greek, Norse, Egyptian & Chinese. Five illustrated field guides to the creatures the old stories either warned or told you about.

Mythological Creatures Field Guide: Japanese Yokai book coverMythological Creatures Field Guide: Greek Myths book coverMythological Creatures Field Guide: Norse Sagas book cover
Mythological Creatures Field Guide: Egyptian Legends book coverMythological Creatures Field Guide: Chinese Beasts book cover
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Curated by the Mythological Creatures Team

Series editor: Mythological Creatures Directory

Primary desk: Hellenic & Ancient Mediterranean Desk

(rev. November 2025)