Glashtyn: The Glashtyn is a legendary shape-shifting creature from Manx folklore, known for its deceptive appearances ranging from a goblin to a water horse.

Glashtyn - Embodies the mysterious and dangerous aspects of aquatic folklore in the Isle of Man, serving as both a cautionary tale and a symbol of transformation.

Glashtyn

Glashtyn - Embodies the mysterious and dangerous aspects of aquatic folklore in the Isle of Man, serving as both a cautionary tale and a symbol of transformation.

The Glashtyn is a legendary shape-shifting creature from Manx folklore, known for its deceptive appearances ranging from a goblin to a water horse. It emerges from aquatic habitats to interact with, and often menace, the island folk. Renowned for pursuing women and using cunning disguises, it remains a mysterious figure in local lore.

Origins & First Encounters

Source Texts & Tale Variants

Form & Powers

Regional Faces

Cultural Parallels

Legacy & Modern Evolution

Interesting Fact

An intriguing aspect of Glashtyn lore is its dual portrayal as both a beguiling trickster and a dangerous predator, capturing the complex interplay of beauty and brutality in Manx mythology.

Enjoying this creature? A quick share helps us keep expanding Mythological Creatures. If not, no worries, enjoy the collection.

For publishers and studios

Your next readers are already here

Many of our visitors are looking for books, campaigns, and resources that deepen their journey into myth. Position your title or setting here.

Discuss a placement

Quick Creature Info

Associations:

Element: water

Our Mythic Legendary Rating:

Mythic Ember
Mythic Ember rating

Also Sometimes Known As:

glashtinglashtanglashan

Habitat:

Aquatic habitats of the Isle of Manwater and occasionally landIsle of ManAssociated with local folklore and legends, the Glashtyn emerges from water bodies to interact with islandersAquatic environments (coastal waters, lakes)Isle of Man and its surrounding waters

Supernatural Powers:

shape-shiftingillusion

Physical Attributes:

horse-earsbovine and equine featuresgoblin-like visageability to transform

Abilities:

adaptive transformationdeceptive appearance

Behavior:

mischievous and predatoryKnown to pursue women and use deception by appearing as a handsome man before revealing its true form

Weaknesses:

vulnerability to loud sounds (rooster's crow)

Lore:

Trickster and predatorManx folkloreEmbodies the mysterious and dangerous aspects of aquatic folklore in the Isle of Man, serving as both a cautionary tale and a symbol of transformation

Related Creatures, Tales or Lore

References

Discover Another Mythical Legend You May Not Have Heard Of?

Uncover the mysteries of ancient folklore and expand your knowledge of legendary beings from cultures around the world.

Dare to Meet the Moñái....

Curated by the Mythological Creatures Team

Series editor: Mythological Creatures Directory

Primary desk: Northern & European Folklore Desk

(rev. November 2025)