Polish punctuation looks reassuringly familiar — the same dots, commas, and question marks you already know — but one piece of it is governed by an entirely different logic. In English the comma is largely a matter of rhythm and taste; in Polish it is a matter of grammar. This page covers where Polish punctuation diverges from English, with the comma as the centrepiece, plus quotation marks, dashes, and how numbers are punctuated.
The comma is grammatical, not rhythmic
This is the single most important thing to internalise. In English you might write "I know that you are right" with no comma, because nothing about your breathing demands one. In Polish, the comma before że ('that') is obligatory — not optional, not stylistic, but required by the rules of the language.
Wiem, że masz rację.
I know that you're right.
Myślę, że to dobry pomysł.
I think that's a good idea.
The rule generalises: a comma is placed before almost every subordinate clause, that is, a clause introduced by a subordinating conjunction or a relative pronoun. The most common triggers are że ('that'), który ('which/who'), żeby ('so that / in order to'), gdy and kiedy ('when'), jeśli and jeżeli ('if'), bo and ponieważ ('because'), chociaż ('although'), and aby ('in order that').
The reason the comma is grammatical here is that Polish marks the boundary between clauses orthographically. The comma tells the reader, "a new clause is starting." Because Polish word order is freer than English, that boundary signal carries real information — it helps the reader parse a sentence whose pieces might otherwise be hard to delimit.
The comma before który
Relative clauses introduced by który ('which', 'who', 'that') always take a comma in front of them — including the kind of clause that English treats as "restrictive" and writes with no comma at all.
Książka, którą mi dałeś, jest świetna.
The book that you gave me is great.
Notice the second example: the relative clause is embedded in the middle of the main sentence, so it is fenced off with commas on both sides — one before którą and one after dałeś. English would write "The book you gave me is great" with no commas at all. (For how these clauses are built, see the który page and relative-clause syntax.)
When not to use a comma: coordinating i
There is one trap that runs in the opposite direction. The coordinating conjunction i ('and') generally does not take a comma before it when it joins two equal elements — words, phrases, or even whole clauses.
Kupiłem chleb i mleko.
I bought bread and milk.
Poszedłem do domu i zrobiłem kolację.
I went home and made dinner.
The same goes for the related conjunctions oraz ('and also'), lub and albo ('or'), and ani ('nor') in their single, non-repeated use. So Polish is the mirror image of the English "Oxford comma" debate: where English speakers fret over a comma before "and", Polish simply forbids it in the ordinary case. (There is a subtlety: if i is repeated — i… i… 'both… and…' — a comma does appear before the second one. But the everyday single i takes none.)
Quotation marks: the „low–high” pair
Polish does not use the English "curly" double quotes. The standard printed form is the German-style pair: an opening mark sitting on the baseline and a closing mark riding high, like this: „…”.
Powiedziała: „Zaraz wracam”.
She said: 'I'll be right back.'
For a quotation inside a quotation, Polish reaches for the French guillemets, but pointing inward: »…«. In handwriting and casual typing many Poles fall back on plain straight quotes "…", but the typographically correct printed form is „…”. Note also that, unlike English, the closing quotation mark normally goes before the sentence-final period when the quote is only part of the sentence, as in the example above.
The dash for omitted copula and for ranges
Polish makes heavy use of the dash (myślnik / pauza) in two places where English would not. First, it stands in for an omitted "to be" linking a subject to a noun predicate — see the to jest construction:
Warszawa to stolica Polski.
Warsaw is the capital of Poland.
Mój brat — lekarz, a siostra — nauczycielka.
My brother is a doctor, and my sister a teacher.
In the second example the dash replaces the verb jest ('is') in a parallel, slightly literary construction. Second, the en-dash (półpauza) marks ranges and is written tight against the numbers: strony 10–15 ('pages 10–15'), w latach 1939–1945 ('in the years 1939–1945').
Direct speech with the dash
Polish narrative prose typically renders dialogue not with quotation marks but with a dash at the start of each speaker's line — exactly as in French or Russian fiction.
— Gdzie idziesz? — zapytała mama.
'Where are you going?' Mum asked.
The reporting clause ("Mum asked") follows after another dash, and the verb of speaking is lower-case even after a question mark, because the sentence as a whole has not ended. This convention is worth recognising the moment you open any Polish novel.
Numbers: decimal comma and grouped thousands
Polish, like most of continental Europe, uses a comma as the decimal separator, never a point.
To kosztuje trzy złote i pięćdziesiąt groszy: 3,50 zł.
That costs three złoty and fifty groszy: 3.50 zł.
For thousands, the convention is a space (a thin, non-breaking space in careful typography), or sometimes a period — never a comma, since the comma is already busy being the decimal point.
W mieście mieszka 1 000 500 osób.
1,000,500 people live in the city.
So the English string "1,000.50" becomes the Polish "1 000,50". Reading a Polish price tag with English eyes — taking "3,50" as "three hundred and fifty" — is a classic tourist mistake.
Common Mistakes
❌ Wiem że masz rację.
Incorrect — missing the obligatory comma before że.
✅ Wiem, że masz rację.
I know that you're right.
By far the most frequent error: English speakers omit the comma before że because their native instinct says "I know that you're right" needs none. In Polish it is compulsory.
❌ To jest dom który kupiłem.
Incorrect — missing the comma before który.
✅ To jest dom, który kupiłem.
This is the house that I bought.
Same root cause, applied to relative clauses: there must be a comma before który even when the English equivalent ("the house that I bought") has none.
❌ Kupiłem chleb, i mleko.
Incorrect — no comma before a single 'and'.
✅ Kupiłem chleb i mleko.
I bought bread and milk.
The opposite over-correction: once learners discover that Polish loves commas, some start sprinkling them before i as well. Single i ('and') takes no comma.
❌ Powiedział: \"Zaraz wracam.\"
Acceptable in casual typing, but not the correct printed form.
✅ Powiedział: „Zaraz wracam”.
He said: 'I'll be right back.'
The opening quotation mark should sit low („) and the closing one high (”); using English-style curly quotes marks the text as informal or foreign-influenced.
❌ Pociąg odjeżdża o 14.30, czyli o 2.30 PM.
Incorrect — the decimal/AM-PM habit applied wrongly.
✅ Pociąg odjeżdża o 14.30.
The train leaves at 2:30 p.m.
Polish uses the 24-hour clock and writes the time with a period or colon (14.30 / 14:30); there is no AM/PM, and "14,30" with a comma would read as a decimal number, not a time.
Key Takeaways
- The Polish comma is grammar-driven: it marks clause boundaries, so it is obligatory before subordinate clauses introduced by że, który, żeby, gdy, jeśli, bo, ponieważ and the like.
- A single i ('and') takes no comma before it.
- Standard quotation marks are the low–high pair „…”; dialogue in fiction uses a leading dash.
- Numbers use a decimal comma (3,50) and a space for thousands (1 000), the reverse of English.
Related Topics
- Relative Pronouns: który, jaki, coB1 — który joins clauses by taking its gender and number from the noun it refers to but its case from its own job inside the relative clause — plus the obligatory comma and the alternatives jaki and co.
- że and żeby: That, So ThatB1 — How że reports facts with the indicative while żeby expresses purpose and wishes with the conditional — and why Polish always keeps the comma English drops.
- Relative Clauses with któryB1 — How to build Polish relative clauses with który — agreeing in gender and number with the antecedent but taking its case from its own clause — plus the obligatory comma and the ban on stranded prepositions.
- Capitalization RulesA2 — Polish capitalizes far less than English — lowercase days, months, languages and nationality adjectives, but capital nationality nouns and polite Pan/Pani in letters.
- Reported (Indirect) SpeechB1 — How Polish reports what people said — with że for statements, czy/wh for questions, żeby for commands — and crucially with NO tense backshift: the original tense is kept exactly as spoken.