If you speak English, your hand will want to write an apostrophe before the possessive -s — Anna's car, the child's room. In Swedish that apostrophe is simply wrong. Swedish marks possession with a bare -s glued straight onto the word, with no apostrophe and no space: Annas bil, barnets rum. The apostrophe genitive is an English import with no native role in Swedish whatsoever — Swedish grammar has never used it. This page is short and practical: it shows you the corrected forms you will write most often, and explains the one wrinkle (names already ending in an s-sound).
The rule: -s, never 's
To make a noun or name possessive in Swedish, you add -s directly. No apostrophe, no gap. That is the entire rule.
Annas bil står på gården.
Anna's car is in the yard. Annas — the -s is attached with NO apostrophe. Not 'Anna's'.
Det är Eriks tur att laga mat.
It's Erik's turn to cook. Eriks, plain -s.
Min systers hund heter Bamse.
My sister's dog is called Bamse. systers — 'sister's', but spelled with no apostrophe.
Compare the two systems directly, because the difference is only the apostrophe — the -s itself is the same:
| English | Swedish (correct) | Wrong (Anglicism) |
|---|---|---|
| Anna's car | Annas bil | |
| Erik's house | Eriks hus | |
| the company's logo | företagets logga |
It works on definite nouns too
The same plain -s attaches to ordinary nouns, including definite ("the") forms. The -s goes on the very end of the whole word, after any definite suffix.
Barnens rum är alltid stökigt.
The children's room is always messy. barnen ('the children') + s = barnens. No apostrophe — not 'barnen's'.
Bilens motor låter konstigt.
The car's engine sounds strange. bilen ('the car') + s = bilens.
Husets tak måste lagas.
The house's roof needs fixing. huset + s = husets.
In barnens, bilens, husets the -s simply rides on the end of the already-definite word. English would tempt you to write barnen's, bilen's — resist it; that apostrophe belongs to English, not Swedish. The full mechanics live on the genitive -s.
Names ending in s, x or z: add nothing
Here is the one genuinely different rule, and it is the opposite of what English does. When a name already ends in an s-sound — written -s, -x, or -z — Swedish adds nothing at all. The name stays exactly as it is and is understood as possessive from context. English would write Lars's or Lars'; Swedish writes just Lars.
Lars bok ligger på bordet.
Lars's book is on the table. Lars already ends in -s, so NOTHING is added — not 'Lars's', not 'Lars'', just Lars.
Har du sett Max cykel?
Have you seen Max's bike? Max ends in -x, so no extra -s and no apostrophe.
Det är Linnéas och Markus gemensamma projekt.
It's Linnéa's and Markus's joint project. Linnéas takes -s normally; Markus ends in -s, so it stays unchanged.
So the full picture for names is: most names add -s (Annas, Eriks, Linnéas); names ending in s/x/z add nothing (Lars, Max, Markus); and in neither case is there ever an apostrophe.
Why this matters: an Anglicism, not just a typo
It is worth understanding what kind of error this is, because that changes how you guard against it. The apostrophe genitive is not a slip of the pen — it is direct interference from English. English is everywhere in Swedish life (brands, social media, software), and the 's pattern is so deeply drilled into English-literate writers that it leaks into Swedish writing. Swedes even have a half-joking name for the phenomenon — the apostrofit ("apostrophe-itis"), the creeping over-use of apostrophes copied from English.
And here is the honest, slightly uncomfortable part: this error is now common among native Swedes too, precisely because of that English influence. You will see Anna's Café on shop signs and Lisa's on Instagram. That does not make it correct — language authorities and style guides are unanimous that Swedish has no apostrophe genitive — but it tells you the pull is strong and constant. Treat the apostrophe as a red flag: in a Swedish possessive, if you see an apostrophe before an -s, it is wrong, full stop. More on this kind of cross-language leakage on English influence on Swedish.
❌ Välkommen till Lisa's Café!
Incorrect (though sadly common on signs) — Swedish has no apostrophe genitive. The English 's has leaked in.
✅ Välkommen till Lisas Café!
Welcome to Lisa's Café! Plain -s, no apostrophe.
Common Mistakes
❌ Anna's bil
Incorrect — the apostrophe is a pure Anglicism. Swedish never uses it in the possessive.
✅ Annas bil
Anna's car. Plain -s attached to the name.
❌ barnen's rum
Incorrect — even on a definite noun, the -s attaches with no apostrophe.
✅ barnens rum
the children's room. barnen + s = barnens.
❌ Lars's bok / Lars' bok
Incorrect — a name ending in -s adds nothing and never takes an apostrophe.
✅ Lars bok
Lars's book. The name stays unchanged.
❌ företaget's logga
Incorrect — both the apostrophe and the placement are wrong; the -s goes on the bare end of the word.
✅ företagets logga
the company's logo. företaget + s = företagets.
❌ Max's cykel
Incorrect on two counts — Max ends in -x (an s-sound), so no extra letter is added, and there is no apostrophe.
✅ Max cykel
Max's bike. The name is unchanged.
Key Takeaways
- Swedish possessive = plain -s, no apostrophe, no space: Annas bil, barnens rum, husets tak.
- The 's of English has no place in Swedish — it is an Anglicism. The fix is almost always just delete the apostrophe.
- Names ending in s, x or z add nothing: Lars bok, Max cykel, Markus projekt — and still no apostrophe.
- This error (apostrofit) is now seen even from native Swedes due to heavy English influence, but it remains wrong in every standard reference.
- Rule of thumb: an apostrophe before -s in a Swedish possessive is always an error.
Now practice Swedish
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Swedish→Related Topics
- The Genitive -sA1 — Swedish forms the possessive by adding a plain -s to the noun — Annas bil, pojkens cykel, barnens rum — with NO apostrophe (unlike English: never *Anna's). The -s attaches to any form (singular, plural, definite), the genitive replaces the article so the phrase is automatically definite, and a noun already ending in -s/-x/-z adds nothing extra (Lars bil).
- English Influence on Modern SwedishB2 — English is the second language of nearly every Swede, and it shows: a steady stream of loanwords (mejl, dejt, app, streama), heavy code-switching among the young, and quiet 'svengelska' calques that bend Swedish idioms and prepositions toward English. The key insight for a learner is that borrowed English words are GRAMMATICALLY nativised — they pick up Swedish gender (en app), Group-1 verb endings (streamade), and Swedish plurals (appar) — even when their spelling stays English-looking.
- False Friends (eventuellt, bli, semester)B1 — Swedish words that look like an English word but mean something else: eventuellt is 'possibly', NOT 'eventually'; bli is 'become', not 'be'; semester is 'vacation', not a school term; aktuell is 'current/relevant', not 'actual'; gymnasium is upper-secondary school. The most dangerous is eventuellt — because the wrong reading ('eventually') still makes surface sense, the error sails through uncaught. This page drills each trap with incorrect→corrected usage.
- Common Mistakes: OverviewA2 — A map of the errors English speakers actually make in Swedish — V2 inversion failures, BIFF word order, de/dem/dom and sin/hans confusion, en/ett gender, the missing supine/participle split, dropped double-definiteness, do-support smuggled into questions and negation, and literal preposition transfer. Almost all of them trace back to a small set of English habits, so fixing the root habit clears whole families of surface errors at once.