Tradition: Finnish Mythology
Alternative Names: Kehno
Category: Demon
Kehno is an evil spirit in Finnish and Karelian folklore and a mythical character appearing in epic songs. He is described as a kind of analogue to the Slavic devil.
No specific physical appearance, powers, or individual legends concerning Kehno are given in the source.
“Кехно (Kehno).” New Bestiary (Bestiary.us). Accessed September 9, 2026. https://www.bestiary.us/kehno
Tradition: Sami mythology, Finnish Mythology, Russian Mythology
Alternative Names: Gofitterak, Gofitterak
Category: Deer
Gofitterrak are wealthy spirits who are masters of wild reindeer herds in Sami mythology. They inhabit the tundra and are associated with the pastures where reindeer graze. They are described as spirits who can be invisible like themselves, yet reveal their presence through the ringing of bells.
Among the mountains, particularly in the kegors—areas covered with lichen where deer graze—and in places covered with grass, the Gofitterrak live with their own herds of deer, cows, and sheep. They sometimes hang bells on their flocks, and by the ringing of these bells the Lapps learn of the spirits’ visible and invisible presence in the pastures.
The herds of the Gofitterrak can be mastered. To do this, a person must have the courage to approach the spirit’s flock while looking only upward and never turning back or looking to either side. The person must then throw a piece of iron into the middle of the flock.
The spirit who tends the herd fears iron and flees when it is thrown. The flock, however, becomes the property of the person who threw the iron away.
“Гофитэрраки (Gofiterraki).” New Bestiary (Bestiary.us). Accessed September 6, 2026. https://www.bestiary.us/gofiterraki
Tradition / Region: Finnish Mythology
Alternative names: Kimmo
Category: Cow
Kimmo is a magical heifer forged by Ilmarinen, the eternal smith and master of metals, during his attempt to create the Sampo. Her horns shine like gold, while the Bear of Heaven and a disc of sunlight mark her forehead.
On the third day of Ilmarinen’s work, after a metal crossbow and a purple-metal skiff had emerged from the furnace and been destroyed, the strange heifer rose from the flames.
Kimmo was wild and impossible to control. She raced through forests, swamps, and meadows, scattering and spilling her milk as she went. No mortal could restrain her, and even Ilmarinen could not tame the creature he had forged.
Realizing that the heifer could not be kept, Ilmarinen cut Kimmo into pieces and threw her back into the furnace. From the magical materials of the forge, the Sampo finally began to take shape, its many-colored lid turning as it produced flour, salt, and gold.
Kalevala: The Epic Poem of Finland: RUNE X. ILMARINEN FORGES THE SAMPO. (J. M. Crawford, Trans.). (1888).
Tradition / Region: Finnish Mythology
Alternative names: Karhu, Ohto, Kontio, Metsän kuningas, Mesikämmen
Category: Bear
Otso is the sacred bear spirit of Finnish mythology and is regarded as the king of the forest and leader of all bears. Rather than being a single bear, Otso represents the collective spirit of every bear. The creature was deeply revered and feared by the ancient Finns and appears in the Kalevala, the Finnish national epic.
Different traditions tell different stories of Otso’s origin. One legend says that the weather god Ukko cast wool into the sea, from which Otso was born when it drifted ashore. Another tradition states that the great bear spirit descended from the constellation Ursa Major.
The oldest myths tell that Otso married the primordial mother of humankind, establishing a sacred bond between bears and people. Although Otso was said to have many wives and children, the stories also describe the great bear as devouring its own offspring.
When a bear was killed, the ancient Finns held a sacred ceremony known as the Peijaiset to honor its spirit. The bear was carefully skinned, its meat shared in a ritual feast, and a symbolic wedding was performed to return the bear to its mythical family. Afterwards, the bear’s skull was mounted high in a pine tree while prayers and chants were offered to Hongotar, the primordial mother of bears.
Finally, the bear’s bones were buried beneath the tree. The skull was treated as a sacred object and carefully preserved, for it was believed that by protecting it from decay, Otso’s spirit could return to the world, be reborn, and continue the eternal cycle of life.
Wikipedia contributors. (n.d.). Otso. In Wikipedia. Retrieved June 29, 2026, from https://en.wikipedia.org/wiki/Otso
Tradition / Region: Finnish Mythology
Alternate Names: Iku-Tursas, Iki-Tursas, Meritursas, Tursas, Turisas
Category: Sea dweller, Giant
Iku-Turso is a fearsome and ancient being of Finnish mythology, most often portrayed as a monstrous creature of the sea. He is described as a malevolent force rising from the depths, associated with destruction, chaos, and primal power.
In mythic tradition, Iku-Turso is not always a single, clearly defined entity. Some stories treat him as one great being, while others suggest multiple related giants or spirits sharing the name. Despite this ambiguity, he is consistently tied to immense strength and dangerous supernatural influence.
In epic tradition, especially in the Kalevala, Iku-Turso emerges from the ocean as a destructive force. At one point, he burns gathered hay, and from the ashes grows a colossal oak tree. This tree becomes so vast that it blocks out the sun and the moon, plunging the world into darkness until it is finally cut down.
He is also depicted as a threat to heroes. When summoned from the sea by Louhi, he rises with the intent to destroy the heroes of Kalevala and reclaim a powerful magical artifact. However, he is ultimately confronted by Väinämöinen, who overpowers him and forces him, through magical command, to swear never to rise from the sea again.
In other traditions, a sea form known as “Meri-Tursas” is connected to the origins of disease, linking the being not only to physical destruction but also to sickness and suffering in the world.
Iku-Turso represents
an ancient, chaotic power of the deep — a giant whose emergence brings fire, darkness, and ruin, and whose defeat restores balance to the world.
Wikipedia contributors. (n.d.). Iku-Turso (creature). In Wikipedia, from https://en.wikipedia.org/wiki/Iku-Turso_(creature)
Tradition / Region: Finnish Mythology
Alternate Names: Paasselän pirut
Category: Flame
The Paasselkä Devils are mysterious glowing lights said to appear over Lake Paasselkä and the surrounding forests and swamps. In folklore, they are not merely natural lights, but supernatural beings with a will of their own.
They are most often seen as floating balls of fire or light hovering above the water or drifting through the night air. Sometimes a single light appears, while at other times several move together across the landscape.
What makes them feared is their strange, almost intelligent behavior. The lights may follow boats, approach people, or suddenly flee when pursued. They can remain still for long periods, then dart away at incredible speed, as if reacting to human presence.
Because of this, locals came to believe that these lights were living entities — spirits or demons — rather than simple natural phenomena. Their unpredictable movements and eerie glow gave them a sinister reputation.
In older belief, encountering these lights was considered dangerous. They were thought to mislead travelers, lure people into unsafe places, or bring misfortune.
The Paasselkä Devils represent
a haunting presence in the wilderness — lights that watch, move, and react, as if something unseen is alive within them.
Wikipedia contributors. (n.d.). Paasselkä devils. In Wikipedia, from https://en.wikipedia.org/wiki/Paasselk%C3%A4_devils
Tradition / Region: Finnish Mythology
Alternate Names: Ajattara, Aijotar
Category: Snake
Ajatar is a dark and malevolent female spirit of Finnish folklore, associated with forests, disease, and serpents. She is feared as a bringer of pestilence, wandering through wild places and spreading illness wherever she goes.
She is described as a terrifying figure: her long hair trails down to her heels, and her breasts hang to her knees, emphasizing her unnatural and disturbing form. This appearance links her to other wild female spirits across Northern Europe, but Ajatar is far more sinister in nature.
Closely connected to forces of evil such as Hiisi and Lempo, Ajatar operates as a servant or embodiment of destructive powers. Through these associations, she is believed to infect humans with sickness and misfortune.
Serpents are strongly tied to her myth. In some traditions, snakes are said to originate from her domain or even from her very being, reinforcing her role as a primal force of danger and corruption. Because of this, she is sometimes imagined not just as a woman, but as a half-serpentine creature or even a dragon-like entity.
Ajatar is also known for leading people astray. Those who wander too deep into the forest may fall under her influence, becoming lost, confused, or afflicted with sudden illness.
Her name is often interpreted as “the pursuer,” reflecting her relentless nature —
a spirit that chases, afflicts, and does not easily release those who fall under her shadow.
Wikipedia contributors. (n.d.). Ajatar. In Wikipedia, from https://en.wikipedia.org/wiki/Ajatar
Tradition / Region: Finnish Mythology
Alternate Names: Haltia
Category: Spirit
A haltija is a supernatural being tied to a specific place, creature, or domain. It exists as the unseen inhabitant and protector of that domain, maintaining its order, balance, and wellbeing.
Each haltija is bound to a particular location or function. Some guard forests, waters, homes, or farms, while others are connected to animal species or even individual people. A haltija may also arise from the dead, especially if a person is buried in their home, becoming a protective presence linked to that place.
Haltijas act as guardians of nature and life. A forest haltija protects the forest and may help or punish humans depending on how they behave within it. A water haltija dwells in lakes or rivers and governs those waters. A haltija tied to animals ensures their continuation by returning them to the earth after death.
Within human spaces, haltijas protect daily life. The home haltija watches over the household, the sauna haltija guards the sauna, and the mill haltija oversees the mill. These spirits require respect, and improper behavior in their domain may bring misfortune.
Offerings were made to haltijas when settling new land or using resources, acknowledging their authority over that place.
A haltija differs from a god in scope. Rather than ruling over vast forces, it governs a specific area or function, acting as a localized power.
It represents a fundamental belief:
every place, being, and domain has its own unseen guardian that must be respected.
Wikipedia contributors. (n.d.). Haltija. In Wikipedia, from https://en.wikipedia.org/wiki/Haltija
Tradition / Region: Finnish Mythology
Alternate Names: —
Category: Spirit, Goblin
Menninkäinen are small spirit beings that dwell in isolated or hidden places. They were originally regarded as generally friendly toward humans and associated with quiet, remote environments.
Over time, their image changed, and they came to be described as goblin-like creatures. They are often linked with hidden treasures and are said to guard them, enjoying riddles, tricks, and contests of wit or dominance.
Their dwelling places vary in different traditions. Some accounts place them deep in forests and natural landscapes, while others describe them as inhabiting more unexpected locations, including human-made environments.
Despite these variations, they remain beings connected to secrecy and hidden spaces, interacting with humans through challenges, games, or encounters tied to what they guard.
Kielitoimiston sanakirja contributors. (n.d.). menninkäinen. In Kielitoimiston sanakirja, from https://www.kielitoimistonsanakirja.fi/#/mennink%C3%A4inen?searchMode=all
Wikipedia contributors. (n.d.). Menninkäinen. In Wikipedia, from https://en.wikipedia.org/wiki/Mennink%C3%A4inen
Tradition / Region: Finnish Mythology
Alternate Names: Näkk, related to Nix, Vetehinen
Category: Spirit
Näkki is a dangerous water spirit that inhabits lakes, ponds, wells, and deep or murky waters. It represents the hostile and deadly side of water, especially in places where the depth or current is hidden.
It waits in ambush for swimmers, pulling them beneath the surface and drowning them. It is often said to dwell in the deepest parts of water, under bridges, near docks, or in whirlpools. Because of its nature, people used protective sayings before entering or leaving the water, acknowledging its presence.
In some traditions, Näkki appears at first in a harmless or even inviting form, sometimes seen sitting on rocks and combing long hair. This appearance hides its true nature, which is revealed only when it attacks. Its real form is described as monstrous, sometimes frog-like, scaly, or made entirely of seaweed, making it impossible to overcome in water.
Regional beliefs distinguish it from other water beings. In some areas, Näkki is the one that physically seizes swimmers, while another spirit brings illness. In others, it is simply another name for older water spirits, including a maternal figure of the waters.
Näkki also appears in ritual and song, where diseases are cast into the water for it to take, placing it among forces that receive and contain harm.
It represents the danger of unseen depths:
a spirit that lures, seizes, and drags the living into the water below.
Mythus Fandom contributors. (n.d.). Näkki. In Mythus Fandom, from https://mythus.fandom.com/wiki/N%C3%A4kki
Wikipedia contributors. (n.d.). Nixie (folklore). In Wikipedia, from https://en.wikipedia.org/wiki/Nixie_(folklore)