Proper nouns — names of people, cities, countries, companies — follow their own small set of rules in Danish, and most of them are about what you leave out. You leave out the article (no the Denmark), and you almost always leave out the apostrophe in the genitive (it is Annas bog, not "Anna's bog"). The one place an apostrophe sneaks back in is a tidy exception that, once you see it, you will never forget.
Proper nouns take no article
A proper noun already points to one specific thing, so Danish does not add an article in front of it. Country names, city names, and personal names stand bare.
Danmark er et lille land, men København er en stor by.
Denmark is a small country, but Copenhagen is a big city.
Anna kommer fra Sverige og bor nu i Århus.
Anna comes from Sweden and now lives in Aarhus.
English speakers rarely err with people's names, but the country-article slips in because some languages (and some English phrasings like "the Netherlands") do use one. In Danish, Danmark, Tyskland, Frankrig never take det or den. The temptation to say "det Danmark" should be resisted entirely — it is simply not grammatical.
The genitive of names: just add -s, no apostrophe
Danish forms the genitive ("possessive") by adding a plain -s to the end of the noun — and crucially, no apostrophe. This is the opposite of English, which inserts an apostrophe (Anna's book). Danish writes Annas bog. The -s sits flush against the name.
Annas bog ligger på bordet.
Anna's book is on the table.
Danmarks historie er lang og fuld af konger.
Denmark's history is long and full of kings.
Har du set Peters nye bil?
Have you seen Peter's new car?
This works for any name, any place, any noun: Mettes hus "Mette's house", Københavns havn "Copenhagen's harbour", Lægens råd "the doctor's advice". The rule is mechanically simple — name + s, written as one word, no punctuation. (For the full mechanics on ordinary nouns, see spelling/genitive-s and nouns/genitive-usage.)
The one exception: names already ending in -s, -x or -z
Here is the exception that proves the rule. If a name already ends in an s-sound — spelled -s, -x, or -z — you cannot simply tack on another -s (you would get an unpronounceable "Jenss"). Danish solves this by adding only an apostrophe: Jens', Lars', Marx', Niels'.
| Name | Genitive | Meaning |
|---|---|---|
| Anna | Annas | Anna's |
| Peter | Peters | Peter's |
| Jens | Jens' | Jens's |
| Lars | Lars' | Lars's |
| Marx | Marx' | Marx's |
| Niels | Niels' | Niels's |
Lars' cykel er blevet stjålet igen.
Lars's bike has been stolen again.
Vi læser Marx' tekster i filosofi.
We're reading Marx's texts in philosophy.
So Danish uses the genitive apostrophe in exactly one situation: after a name that already ends in -s, -x, or -z. Everywhere else, no apostrophe. This is the mirror image of the English habit, where the apostrophe is the default and the bare -s is the error — so an English speaker has to consciously reverse the instinct.
Companies, institutions and brand names
Names of companies, shops and institutions are proper nouns too, and they follow the same logic: capitalised, no article, genitive with a plain -s.
Carlsbergs reklamer er kendt over hele verden.
Carlsberg's adverts are known all over the world.
Jeg arbejder i Novos forskningsafdeling.
I work in Novo's research department.
When a company name itself ends in -s (or a sound like it), the apostrophe rule kicks in just as with people: Mærsk' would take only an apostrophe. In everyday writing many companies are also referred to with a following noun instead (hos Mærsk "at Mærsk"), which sidesteps the genitive entirely.
Place names that DO carry a definite suffix
The "no article" rule has a small wrinkle. A handful of geographic names are historically built from a common noun plus the Danish definite ending -et or -en, and they keep it baked in. Bjerget literally means "the mountain", Sundet "the strait" (the Øresund). These look like they have an article because they once did — it is now fused into the name.
Vi sejlede gennem Sundet i tæt tåge.
We sailed through the Sound (Øresund) in thick fog.
By contrast, the big island and city names take nothing: Sjælland "Zealand", Fyn "Funen", København. And the Copenhagen district names Vesterbro, Østerbro, Nørrebro are bare too — the -bro "bridge" is part of the name, not a suffix you add or remove.
Hun bor på Vesterbro, men arbejder på Sjælland nord for byen.
She lives in Vesterbro but works in Zealand north of the city.
Common Mistakes
❌ Det Danmark er et smukt land.
Incorrect — country names never take an article in Danish.
✅ Danmark er et smukt land.
Denmark is a beautiful country.
❌ Anna's bog ligger på bordet.
Incorrect — Danish genitive has no apostrophe (English habit).
✅ Annas bog ligger på bordet.
Anna's book is on the table.
❌ Jenss cykel er væk.
Incorrect — you can't add a second -s to a name ending in -s.
✅ Jens' cykel er væk.
Jens's bike is gone.
❌ Vi læste om den Danmarks historie.
Incorrect — a name in the genitive needs no article on top of it.
✅ Vi læste om Danmarks historie.
We read about Denmark's history.
❌ Jeg arbejder i den Carlsberg.
Incorrect — company names are proper nouns; no article.
✅ Jeg arbejder hos Carlsberg.
I work at Carlsberg.
Key Takeaways
- Proper nouns (people, cities, countries, companies) take no article: Danmark, Anna, Carlsberg.
- The genitive of a name is just -s with no apostrophe: Annas bog, Danmarks historie.
- The one exception: names ending in -s, -x, -z take an apostrophe only: Jens', Lars', Marx'.
- A few fused names keep an old definite ending (Sundet, Bjerget), but island and district names are bare (Sjælland, Vesterbro).
Now practice Danish
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Start learning Danish→Related Topics
- The Genitive -s (No Apostrophe)A2 — Danish forms the possessive with a plain -s glued to the noun — Peters bil, byens gader — with no apostrophe except after s, x or z.
- Using the GenitiveA2 — How the Danish genitive -s is actually used — possession, the group genitive on whole phrases, and when Danish prefers a compound or an af-phrase instead.
- Nationality and Origin AdjectivesA2 — How Danish builds nationality adjectives, language names, and the word for a person from a country — all lowercase, unlike English.
- Denmark: The Heartland of DanishA2 — Where Danish lives — the standard language, the regions, and how to read the Danish map through its productive place-name suffixes.