From Christiania to Oslo: The Political History of a City's Name

A city's name is rarely neutral. It encodes power, identity and belonging in a form that is encountered by every person who speaks, writes or reads it. Oslo has carried three distinct names across its recorded history — Oslo, Christiania and Kristiania — and each transition between them was a political act as much as an administrative one. The current name, restored in 1925, is in some ways the most politically charged of all, because it was a deliberate reclamation of an identity that had been suppressed for three centuries.

The Original Oslo

The name Oslo appears in written records from the eleventh century. Its precise etymology remains debated among scholars, but the most widely accepted interpretation derives it from Old Norse — either from 'ás' (a Norse god, or alternatively a ridge or hill) combined with 'lo' (a meadow or plain near water), or from 'Ansen', an older name for the Ekeberg ridge that defines the eastern side of the original settlement. Whichever derivation is correct, the name was firmly established by the time the medieval city was developing at the foot of the Ekebergåsen, where traces of its streets and structures are still visible today in the area known as Gamlebyen — the Old Town.

The medieval city of Oslo was a modest but functioning urban centre by Scandinavian standards of the period. It had a bishop's seat established in the twelfth century, a cathedral, several monastic institutions and the beginnings of a royal administrative presence. Its position at the head of the Oslofjord gave it commercial and strategic importance as a transit point for trade moving along the Norwegian coast and into the interior.

The Fire and the Renaming

In 1624, a fire destroyed most of the medieval city. The Danish king Christian IV, who ruled Norway as part of the union between the two countries, took the occasion not merely to rebuild but to relocate. The old site was vulnerable — it lay exposed on the eastern shore — while the western bank offered the protection of the Akershus Fortress, already in place since around 1300. Christian IV ordered the new city to be built immediately west of the fortress, on a Renaissance grid plan with streets laid out at right angles. He then named the new city after himself: Christiania.

The renaming was an assertion of Danish royal authority over the Norwegian city. Norway had been in union with Denmark since 1397 and was, in the early seventeenth century, governed essentially as a Danish province. Replacing a Norse place name with the king's own name was consistent with the broader cultural and linguistic Danification of Norwegian urban life that characterised the period. Norwegian written language at the time was for practical purposes identical to Danish; the educated and official classes used Danish as their medium of communication; and the renaming of the capital reflected the subordination of Norwegian cultural identity to Danish political authority.

Kristiania and the Spelling Reform

In 1877, the spelling of the city's name was changed from Christiania to Kristiania. The change was part of a broader movement to Norwegianise the written language — to introduce Norwegian phonetic spellings for words that had previously been written in their Danish forms. The change from the Danish 'Ch' to the Norwegian 'K' was small in itself but symbolically significant: it registered that the city's name, even if it still honoured a Danish king, would henceforth be spelled according to Norwegian rather than Danish conventions.

This linguistic shift was part of a larger cultural ferment that produced, among other things, the Landsmål movement led by Ivar Aasen, who constructed a written Norwegian language based on rural dialects — what eventually became Nynorsk — as an alternative to the Dano-Norwegian that dominated urban and official life. The argument was that Norway deserved a written language rooted in its own spoken traditions rather than imported from its former ruler.

The Restoration of Oslo

After Norwegian independence from Sweden in 1905 — Norway had entered a new union with Sweden following its separation from Denmark in 1814 — the question of the capital's name became politically live. Independence produced a strong impulse to remove the markers of foreign domination from Norwegian public life, and the name Kristiania, honouring a Danish king dead for three hundred years, was an obvious candidate for revision.

The decision was not immediate. It took twenty years of debate, political negotiation and referendums before the city council voted in 1924 to restore the name Oslo, effective from 1 January 1925. The decision was not unanimous and was opposed by those who argued that the name Kristiania had its own history and identity by that point. But the restoration carried the day, and Oslo — the name the city had carried before a foreign king rebuilt it and claimed it — was returned. The Oslofjord had kept the name throughout; the city finally caught up with its own geography.