Drive along Norway’s Highway 63 and you will pass a yellow road sign unlike anything else in Europe: a black silhouette of a horned, hunch-backed creature, warning drivers to watch for trolls. It marks Trollstigen — “the Troll’s Path” — one of the country’s most famous mountain roads, and the name is not a tourist-board joke. Ask a Norwegian where it comes from and you will get a shrug, a smile, and a story considerably older than the tarmac underneath it.
Norway is stitched together with troll place names — Trollstigen, Trollhättan, Trollheimen, Trolltunga — and Sweden and Denmark have their own troll traditions folded into forests, fairy tales, and even a Danish toy that went on to conquer the world. Scandification has spent a long time in the company of Norse gods and monsters, but one of the region’s oldest and most stubbornly persistent folk creatures has never had its own deep dive. Here is where trolls actually come from, how differently Norway and Sweden imagine them, and why the word is still doing serious work on road signs eight hundred years after anyone genuinely feared meeting one on a mountain pass.
What a Troll Actually Is
The Old Norse word troll is maddeningly hard to pin down. In the earliest sources it could mean a monster, a demon, a giant, or simply “a worker of magic” — it is related to the Old Norse verb trylla, to bewitch or drive mad, which survives today in the modern Scandinavian word for magic itself, trolldom. Rather than naming one specific creature, “troll” originally functioned more like the English word “monster”: a catch-all for anything uncanny, dangerous, and outside the human world.
That vagueness is exactly why the troll survived so well. As Christianity displaced the old gods across Scandinavia, formal belief in Odin and Thor faded from public life within a few generations — but belief in trolls, tucked away in the forests and mountains rather than worshipped in halls, quietly outlasted the conversion by centuries. Folklorists sometimes describe this as a shift from innmark to utmark: the old gods governed the cultivated, settled world, while trolls came to represent everything beyond the fence line — the wilderness that farming communities had not yet tamed.
Trolls vs. the Giants of Norse Mythology
It is tempting to assume trolls are simply what the Eddas call jötnar, the giants who feature constantly as Odin and Thor’s adversaries, but the two are not quite the same thing. The medieval Icelandic sources that record Norse mythology rarely use the word “troll” for these beings; they are jötnar, a distinct and often sympathetic race with their own complex relationships to the gods. “Troll” as a household word for a dangerous, solitary wilderness-dweller is largely a product of later medieval ballads and post-conversion folk belief, not the Eddas themselves.
The line blurred quickly in popular use, though, and by the time the Viking Age gave way to the sagas, “troll” was already being applied loosely to jötnar, ogres, and any hostile supernatural being a storyteller needed. Readers curious about where the historical Vikings fit into all of this — as opposed to the mythology they carried with them — can find the fuller picture in our guide to the history of the Vikings.
Norway’s Mountain Trolls: Stone by Daylight
Norwegian troll folklore is overwhelmingly a folklore of mountains and rock. Trolls here are typically enormous, slow-witted, and hideously ugly by human standards — sometimes with multiple heads, always with an aversion to sunlight, which turns them instantly to stone. Norwegians will happily point to specific outcrops and boulders across the country and tell you, with a straight face, that they are trolls caught outdoors at dawn.
No single work did more to fix this image in the popular imagination than Henrik Ibsen’s 1867 play Peer Gynt, in which the title character stumbles into the hall of the Troll King, Dovregubben, deep inside the Dovrefjell mountains. Edvard Grieg’s score for the play, especially the piece known as “In the Hall of the Mountain King,” turned that scene into one of the most recognisable pieces of music to come out of Scandinavia, and cemented the troll king’s mountain hall as a fixture of Norwegian cultural memory. The landscape itself still carries the joke: Trolltunga, “the Troll’s Tongue,” is now one of Norway’s most photographed hikes, and the Trollheimen mountain range — literally “the Troll’s Home” — remains one of the country’s wildest and least-visited wilderness areas.
Sweden’s Forest Trolls and the Troll Cross
Move east into Sweden and the trolls come down out of the mountains and into the forest. Swedish trolls are frequently closer to human size, live in family groups rather than solitary mountain halls, and were blamed for a much more intimate kind of mischief: bortbyting, or changelings. In an era with no medical explanation for infant illness or disability, it was once common in parts of rural Sweden to say that trolls had crept in during the night and swapped a healthy human baby for one of their own.
Out of that same anxious folk tradition came the trollkors, or troll cross — a small, curled iron amulet from the Blekinge region in southern Sweden, traditionally hung by the door or worn to ward off trolls and the nightmare-spirit known as the mara. Genuinely rural and largely forgotten by the twentieth century, the troll cross found an unlikely second life in the 1990s, when it was adopted as a symbol by Scandinavian folk and black metal musicians looking for pre-Christian imagery — a small, strange loop connecting Viking-age farmhouse superstition to a modern subculture on the other side of the world.
Denmark’s Quieter Trolls — and the Toy That Conquered the World
Denmark’s flatter, more thoroughly farmed landscape never generated the same density of mountain-troll sagas as Norway and Sweden, but Danish trolls appear steadily through the country’s fairy-tale tradition, usually as forest-dwelling tricksters rather than stone giants. Denmark’s real contribution to global troll culture, though, is not a legend at all: it is a toy. In 1959, a Danish fisherman and woodcutter named Thomas Dam carved a wide-eyed, wild-haired troll figure for his daughter because he could not afford a proper Christmas present. The “Good Luck Troll” he began manufacturing from his garage in Gjøl became an international craze within a few years, was licensed and knocked off around the world under names like Dam Things and Norfin Trolls, and eventually formed the direct ancestor of the modern Trolls film franchise. It is a strange irony that the most globally recognisable “troll” image today — cheerful, colourful, and entirely harmless — comes from the one Nordic country with the least frightening troll folklore to begin with.
A City Named After a Troll’s Hat
Back in Sweden, the industrial city of Trollhättan takes its name directly from the dramatic rock formations around its waterfalls, which early settlers thought resembled a troll’s hat, or hätta. Long before it became known to car enthusiasts as the home of Saab — the story we told in our piece on Saab’s rise and fall — Trollhättan was already a place defined by the same folk imagination that named half of Norway’s mountain passes. It is a useful reminder of just how deep troll place names run across the region, well beyond the obviously mountainous parts of the map.
Trolls, Huldra, and the Hidden Folk
Trolls are often bundled together with Scandinavia’s other supernatural wilderness-dwellers, but they are not identical to them. Norway’s huldra, a beautiful forest woman who conceals a hollow back or a cow’s tail, is a separate figure from folklore concerned with seduction and boundaries rather than brute size and stone. Iceland took its own version of “the hidden ones” in a different direction entirely: as we explored in our guide to Huldufólk, Iceland’s hidden people, that tradition produced elf-like beings still taken seriously enough to occasionally reroute a road. Trolls, huldra, and huldufólk all spring from the same root instinct — that the land beyond the farmhouse fence is inhabited by something that predates the people who settled it — even though each country’s version developed its own personality.
Why Trolls Still Matter
It would be easy to file trolls away as quaint tourist branding — a convenient name for a hiking trail or a mountain road. But the persistence of troll folklore says something real about how Scandinavians have long made sense of a landscape that is still, in large stretches, genuinely wild: mountains that swallow travellers, forests that seem to rearrange themselves after dark, waterfalls loud enough to sound like something is shouting back. Long after the conversion to Christianity and long after electric light reached even the remotest fjords, the story of something old and enormous living just past the last farmhouse never quite stopped making sense. That is probably the real reason those road signs are still standing.
Photo by Jędrzej Koralewski on Pexels.
