What Was the Old Name for Oslo?

What Was the Old Name for Oslo?

Oslo's old name was Christiania, later spelled Kristiania, and the city carried that name for roughly three hundred years. The medieval trading town of Oslo burned down early in the seventeenth century, and King Christian IV of Denmark-Norway ordered it rebuilt on the west side of the bay under his own name. The city kept the name Christiania, and then Kristiania, until the early twentieth century, when it took back the old name Oslo. Norway had become independent of Sweden, and a Danish king's name no longer suited a Norwegian capital.

The name change was not cosmetic. It was a deliberate act of nation-building, and you can still read all three layers of the city's naming history in its streets, its buildings and its maps today. The story starts a thousand years ago, on the east bank of the Alna river, where a Viking-age king founded a town that would eventually outgrow, outlive and out-name every ruler who tried to stamp his own identity on it.

What Was the Old Name for Oslo?

The old name for Oslo is Christiania, given by King Christian IV after the medieval town burned down in the early seventeenth century. The king ordered the town moved across the bay and rebuilt near Akershus Fortress, and he named it after himself. The official spelling later became Kristiania with a K, reflecting Norwegian spelling reform in the late nineteenth century. In the early twentieth century the city restored its original name, Oslo, which dates back to the town's founding in the late Viking age. So the city has had three names: Oslo, Christiania and Kristiania.

The sequence matters because each change tracks a shift in who controlled Norway. Oslo was a Norwegian medieval town, founded in the Viking age and made a proper bishopric in the twelfth century. Christiania was a Danish royal project, built while Norway was a junior partner under Copenhagen. Kristiania was a Norwegianized version of that Danish name, adopted as Norwegians built their own written language. And the return to Oslo came two decades into a fully independent Norway, when the country was busy renaming itself out of four hundred years of Danish and Swedish rule.

Here is the whole timeline in one table:

One detail that surprises visitors: for most of the nineteenth century the two spellings coexisted. Official documents, maps and shop signs used Christiania and Kristiania interchangeably depending on the printer's politics. The city council only settled the question for good in the early twentieth century, by getting rid of both.

Why Did Oslo Take Its Name Back?

Oslo took its name back because, after Norway's full independence from Sweden, a capital named after a Danish king felt wrong to Norwegian nationalists and to the growing city itself. The debate ran for decades before the change finally took effect at the start of the nineteen-twenties, with proposals including reverting to the medieval name or adopting entirely new ones. The city council voted to restore Oslo, the name of the medieval town on the opposite shore. It was one of several renaming decisions made in the young Norwegian state.

The argument that won was historical rather than sentimental. Christiania was only three hundred years old, and it was a name imposed from above by a foreign monarch. Oslo was the name the town had carried for nearly six centuries before the fire, and it tied the new capital to Norway's medieval golden age, the age of kings like Harald Hardrada, who is traditionally credited with founding the town in the late Viking age. Restoring it connected the modern city to a Norwegian past that predated both the Danish and the Swedish unions.

The change rippled through the city. Streets, institutions and businesses that had "Kristiania" in their names updated them, though a few holdouts kept the old spelling for years afterward, much to the amusement of newspaper columnists of the day. If you read Norwegian sources from that era you can watch the transition happen in real time, with both names appearing on the same page during the first weeks after the switch.

The story is part of a bigger arc covered in the site's guide to Oslo's history, which traces the city from its Viking-age origins through the unions, the industrial boom and the modern capital. The short version is that names in this city have always been political, and the restoration of Oslo was the last and loudest of them.

Where Was Medieval Oslo, and Can You Visit It Today?

Yes, the site of medieval Oslo is visitable, on the east side of the city center between Oslo Cathedral and the MUNCH museum in Bjørvika. The medieval town stood on the east bank, opposite the Christiania that replaced it, and its ruins are now an open-air heritage area called Middelalderparken, the Medieval Park. You can walk the line of the old town walls, see the ruins of the medieval royal palace and St. Mary's Church, and stand where the original Oslo stood before the fire consumed it. The park is free to enter and open year round.

The site sits in the Gamlebyen, or Old Town, district, which is a short walk east of Karl Johans gate. It is one of the genuinely free things to do in the city, in the same spirit as the free sights described in the free things to do in Oslo guide. The ruins are low stone foundations rather than dramatic towers, so set expectations accordingly, but the setting beside the water, with the modern opera house and the Barcode skyline behind it, makes the contrast between the two Oslos unusually vivid.

A few practical notes for a visit:

The great fire is the hinge of the whole story. Christian IV decided the exposed wooden town should not be rebuilt in place, and he forced the survivors across the bay to the sheltered ground below Akershus Fortress, which you can explore today using the Akershus Fortress guide. That decision is why Oslo's "old town" is not where the oldest name is, and why the medieval ruins sit in what is now a quiet residential corner rather than at the heart of the city.

Seeing the harbor from the water is the best way to understand the geography of the move, and the fjord itself is the reason both town sites existed where they did. The Silent Electric Boat fjord cruise with audio guide runs 90 minutes from the harbor and passes the shoreline the rebuilt city turned its face toward, with commentary that covers the waterfront's history as you go.

If you would rather stay on dry land and get the full story on foot, there are good options there too. A guided walk through the center covers the same ground the rebuilt town was laid out on, and the museum peninsula makes an easy second half of the day.

Whichever format you prefer, the trio below covers the classic first-day options: the fjord cruise, the free walking tour of the city center, and the Kon-Tiki Museum ticket on the museum peninsula.

What Does the Name Oslo Actually Mean?

The meaning of the name Oslo is uncertain, and the two main theories point either to the meadow at the bay's north, from Old Norse words for meadow, or to the river at the town's site, the Alna, whose older form may lie behind the name. What is certain is that the name predates the town's earliest written records and belongs to the landscape rather than to any ruler. That is the opposite of Christiania, which was named for a specific king on a specific date, and the difference explains why the medieval name carried so much weight in the renaming debate.

Place-name scholars have debated the etymology for well over a century without a settled answer, and honest sources say so plainly rather than picking a favorite. The meadow theory reads the first element as Old Norse for a meadow, with the final element meaning meadow as well in some interpretations, which would make it a doubly pastoral name. The river theory connects it to the Alna, the river that ran past the medieval town and still runs through the east side of the city today, largely channelled and out of sight for much of its course. The rest of the planning pages sit on Oslo Travel Guide. The rest of the planning pages sit on Oslo Travel Guide.

The name's age is easier to pin down than its meaning. Oslo appears in written sources from the twelfth century onward, and the town's traditional founding date in the late Viking age comes from the medieval kings' sagas, which credit Harald Hardrada with establishing it. Whether that exact date and founder hold up to modern scrutiny, the town was clearly established before the twelfth century and grew into one of Norway's most important medieval towns, with a cathedral, a bishop and a royal residence before the fourteenth century was out.

How Long Was the City Called Christiania?

The city was called Christiania or Kristiania for just over three hundred years, from the great fire of the early seventeenth century until the restoration of the Oslo name in the early twentieth century. That is longer than the United States has existed, and for most of that period the name Christiania was as fixed a part of the European map as Copenhagen or Stockholm. The Kristiania spelling was official for only the last few decades of that run, but the name in both spellings defined the city through its growth from a small wooden town of a few thousand people into an industrial capital.

The three-hundred-year run produced an enormous paper trail. Novels set in the city, early photographs, immigration records and old maps all carry the Christiania name, which is why anyone tracing family history in Norway eventually runs into it. A great-great-grandparent who emigrated "from Christiania" in the late nineteenth century came from exactly the same city as modern Oslo, and the passenger manifests and church records of the era use both spellings depending on the year and the clerk.

The name also survives in the city's fabric in small ways. Some streets and a few institutions kept references to the Christiania era, and the harbor district the king built still forms the core of the modern city center. The grid laid out after the fire is still readable in the blocks between Oslo Cathedral and the waterfront, which is one of the reasons a walk through the center doubles as a walk through the naming timeline. The site's overview of what Oslo is known for covers how those layers show up for a first-time visitor.

Do Any Other Norwegian Cities Have Old Names Too?

Yes, several Norwegian cities have changed names for the same political reasons Oslo did, and the pattern is remarkably consistent: Danish-era names were Norwegianized or replaced after the country gained independence. Kristiansand still carries a Danish king's name and kept it, while others adjusted spellings to match modern Norwegian. Oslo's restoration of its medieval name was the largest and most symbolic of these decisions, but it belonged to a national movement of language and naming reform that reshaped maps across the newly independent country in the early twentieth century.

The reform went beyond city names. Family names, farm names and even first names were Norwegianized in the first decades of the twentieth century, as a population that had spent four centuries writing Danish built a written standard closer to spoken Norwegian. The city name debate was part of that same current, and the people who argued for Oslo were often the same people arguing for Norwegian spelling in schools and newspapers.

For a visitor, the practical takeaway is simple: if a source mentions Christiania or Kristiania, it means Oslo, and the age of the source usually tells you which spelling to expect. Anything from the Danish era should read Christiania with a Ch, anything official from the spelling-reform decades should read Kristiania with a K, and anything from independent Norway onward uses Oslo. Old postcards and prints sold in the city's antique shops follow exactly this pattern, which makes them a cheap and reliable souvenir of the naming story.

Before the FAQ, one last practical note. However you spend your days in the city, the classic first Oslo experience remains the fjord, and this site, oslotravelguide.com, covers the full range of ways to see it. The trio below repeats the three most-booked starting points: the electric boat cruise, the free walking tour and the Kon-Tiki Museum.

Common Questions About Oslo's Old Name

what was the old name for oslo?

Oslo was called Christiania, the name King Christian IV gave the rebuilt town after a catastrophic fire in the early seventeenth century. The spelling later became Kristiania, and the city restored the name Oslo in the early twentieth century, centuries after the medieval town was first established.

Why was Oslo renamed after a Danish king?

When the medieval town of Oslo burned down, Norway was ruled from Copenhagen as part of the Denmark-Norway union. Christian IV ordered the town rebuilt near Akershus Fortress on the west side of the bay, and naming the new town after himself was a standard royal practice of the era. The name stuck for three hundred years.

When did Christiania become Oslo?

The change took effect in the early twentieth century, following a city council decision. Norway had gained full independence from Sweden some years earlier, and the Danish royal name no longer suited a Norwegian capital. The restored name Oslo connects the modern city to the medieval town founded in the Viking age.

What is the difference between Christiania and Kristiania?

They are the same name in different spellings. Christiania, with a Ch, is the original Danish form used from the seventeenth century. Kristiania, with a K, is the Norwegianized spelling adopted in the late nineteenth century as Norway developed its own written language. Both were in circulation for decades before the city restored the Oslo name.

Can you visit the original medieval Oslo?

Yes. The site of the medieval town is on the east side of the center in the Gamlebyen district, in and around the Medieval Park. The ruins of the town walls, the royal residence and St. Mary's Church are free to visit year round, a short walk from Oslo Cathedral and the MUNCH museum.

Does the name Oslo mean anything?

The etymology is uncertain. The leading theories connect it either to an Old Norse word for a meadow, or to the Alna river that ran past the medieval town. What is certain is that the name is ancient, tied to the landscape rather than to a ruler, and predates the town's earliest written records.