Piru: Piru is a demonic fiend in Finnish mythology, originally borrowed from Slavic traditions and associated with the thunder god Perun.

Piru - Piru embodies the archetype of a demonic trickster and haunting spirit in Finnish mythology, reflecting both borrowed Slavic influences and indigenous folk beliefs.

Piru

Piru - Piru embodies the archetype of a demonic trickster and haunting spirit in Finnish mythology, reflecting both borrowed Slavic influences and indigenous folk beliefs.

Piru is a demonic fiend in Finnish mythology, originally borrowed from Slavic traditions and associated with the thunder god Perun. It is depicted as a nasty forest spirit known for its cunning and haunting poltergeist phenomena. Renowned in folklore, Piru embodies mischief and malevolence, often engaging in battles of wits with humans.

Origins & First Encounters

Source Texts & Tale Variants

Form & Powers

Regional Faces

Cultural Parallels

Legacy & Modern Evolution

Interesting Fact

An interesting aspect of Piru is its dual role as both a trickster spirit and a representation of demonic malice, bridging Slavic and Finnish mythologies and influencing modern language usage in Finland.

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Quick Creature Info

Our Mythic Legendary Rating:

Ethereal Power
Ethereal Power rating

Also Sometimes Known As:

Pääpiru

Habitat:

ForestFinnish forestsOften found in remote, dense forests in Finnish folklore.ForestsFinland

Supernatural Powers:

InvisibilityImmortalityTelekinesisCurse Ability

Physical Attributes:

mischievous aurahaunting presenceassociation with forest elementsintangibleshadow-like

Abilities:

Engages in battles of witsCauses poltergeist phenomenaCunningMischief

Behavior:

Mischievous and malevolentEngages humans in contests of wits and may cause haunting occurrences

Lore:

Trickster and demonic presenceFinnish folklore with Slavic influencesPiru embodies the archetype of a demonic trickster and haunting spirit in Finnish mythology, reflecting both borrowed Slavic influences and indigenous folk beliefs

Related Creatures, Tales or Lore

References

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Curated by the Mythological Creatures Team (rev. May 2025)