Kurdish vs Persian: How Similar Are They? Words, Scripts and Grammar Compared

Kurdish and Persian are two separate languages, not one language and its dialect. Both belong to the Iranian branch of the Indo-European family, so they share many words, such as Persian نان (nân) and Kurdish nan, “bread.” But Kurdish is a group of varieties (mainly Kurmanji, Sorani and Southern Kurdish) with its own sounds and grammar, and speakers of one cannot simply understand the other.

Below you will find a clear side-by-side comparison: where each language comes from, how the scripts differ, 25 everyday words in Persian, Kurmanji and Sorani, the grammar points that make the two feel so different, and what all of this means if you are a Kurdish speaker learning Persian or the other way around. Persian examples come with transliteration; Kurdish examples are given in their own spelling.

Kurdish vs Persian at a glance

How Kurdish and Persian are related

Linguists group the Iranian languages into western and eastern branches. Persian and Kurdish both sit in the western branch. Within it, Persian is the best-known member of the southwestern group, the line that runs from Old Persian (the language of the Achaemenid inscriptions) through Middle Persian to the New Persian spoken today. Kurdish is usually placed in the northwestern group, together with languages such as Balochi, Zazaki and Gorani, although it has absorbed many southwestern features through centuries of close contact with Persian.

A good comparison for English speakers: Kurdish and Persian are related roughly the way English and German are. You can see the family resemblance in basic words, and a linguist can show you regular sound changes that connect them, but you cannot sit in on a conversation in the other language and follow it.

Kurdish is not a dialect of Persian

You will sometimes hear Kurdish called “a dialect of Persian.” That is not how linguists describe it. Kurdish developed along its own line from Old Iranian, not out of Persian, and it has sounds, grammar and basic vocabulary that Persian does not share. A 2023 study that compared a standard 100-word list of basic vocabulary found that only about half of the words were related between Kurdish and Persian, far below what you see between dialects of one language.

The question can also carry political weight, so it is worth putting plainly: calling Kurdish a separate language is a statement about linguistics, and it is also how Kurdish speakers themselves see their language.

Kurdish is a family of varieties

“Kurdish” covers several varieties that differ a lot from one another, and this matters for any comparison with Persian:

• Kurmanji (Northern Kurdish) is the largest group. It is spoken in Turkey, Syria, northern Iraq, northwestern Iran, and by Kurdish communities in Khorasan in northeastern Iran. It is usually written in the Latin alphabet.
• Sorani (Central Kurdish) is spoken in the Kurdistan Region of Iraq (around Erbil and Sulaymaniyah) and in Iran’s Kurdistan province and the surrounding area, including Sanandaj and Mahabad. It is written in an Arabic-based alphabet.
• Southern Kurdish is spoken mainly in Iran’s Kermanshah and Ilam provinces and across the border in eastern Iraq.

Kurmanji and Sorani differ from each other in grammar about as much as they each differ from Persian in some areas. For example, Kurmanji has grammatical gender and case endings, and Sorani has neither. So “how close is Kurdish to Persian” has a slightly different answer for each variety. Zazaki and Gorani (Hawrami), spoken by many people who identify as Kurds, are generally treated by linguists as separate Northwestern Iranian languages.

Where Kurdish and Persian are spoken

Persian is the official language of Iran and the everyday language of most Iranians. The same language, with its own accents and some different words, is called Dari in Afghanistan and Tajik in Tajikistan, where it is written in Cyrillic. For the full picture, see where Persian is spoken and Farsi vs Persian vs Dari vs Tajik.

Kurdish is spoken across a mountainous region where Turkey, Iraq, Iran and Syria meet, often called Kurdistan. The largest Kurdish-speaking population lives in Turkey. In Iraq, Kurdish is an official language alongside Arabic. In Iran, Kurdish is spoken mainly in the western provinces of Kurdistan, Kermanshah, Ilam and West Azerbaijan, with older Kurmanji-speaking communities in North Khorasan. There are also large Kurdish communities in Europe, especially in Germany.

In Persian, the Kurdish language is زبان کردی (zabân-e kordi) Listen, a Kurd is کرد (kord), and the Iranian province is کردستان (kordestân) Listen. Notice the spelling: Persian writes کرد with no letter for the short o, while Sorani writes کورد with a و for the vowel. That small difference leads us to the scripts.

Scripts: three ways to write

If you see Kurdish written, it will be in one of two alphabets, depending on the variety and the country.

Persian: the Perso-Arabic alphabet

Persian uses 32 letters: the Arabic alphabet plus پ (p), چ (ch), ژ (zh) and گ (g). The long vowels â, i and u are written, but the short vowels a, e and o usually are not, so a reader has to know the word. کرد could in principle be read several ways; you know it is kord from context. Persian also keeps Arabic letters that sound the same in Persian, such as ث, س and ص, which are all pronounced s. Our Persian alphabet guide walks through every letter.

Sorani: an Arabic-based alphabet that writes the vowels

Sorani uses the same base alphabet, so a Persian reader recognizes most of the letters at once. The big difference is that Sorani writes all its vowels. It adds letters such as ە (the vowel e), ۆ (o), ێ (ê), ڵ (a dark, heavy l), ڕ (a rolled r) and ڤ (v). It generally spells words the way they sound, so the extra Arabic letters that Persian keeps for historical spelling are much less common.

The practical result: a Persian reader can often sound out a Sorani word more reliably than a Persian one, because nothing is left for the reader to guess. Compare Persian زبان (zabân, language) with Sorani زمان (ziman), and Persian شب (shab, night) with Sorani شەو (shew), where the vowel e is written with its own letter.

A quick way to tell Sorani from Persian on a page: look for ە, ێ, ۆ and ڵ. Persian never uses them.

Kurmanji: the Latin alphabet

Most Kurmanji writing uses a Latin alphabet known as the Hawar alphabet, named after the journal Hawar, in which Celadet Bedirxan published it in the 1930s. It uses letters such as ç (ch), ş (sh), x (kh), ê, î and û. So “night” is şev, “eye” is çav, and “good” is baş. For a Persian speaker, Kurmanji on a page looks a little like Turkish, even though the two languages are not related.

Persian is sometimes written in Latin letters too, informally, in what Iranians call Finglish, but that has no official status. If you want to type in Persian script instead, try our online Persian keyboard.

Vocabulary: 25 words compared

The table below compares common words in Persian, Kurmanji and Sorani. Persian is given in script with transliteration; Kurmanji in its Latin spelling; Sorani in its own script with a romanization in the Kurdish Latin style. Words in the first group are clearly related, those in the second group are related but changed by regular sound shifts, and the last group shows everyday words that are entirely different.

Words that are almost the same

The last row is a nice example of how the same word can feel different in each language. In Persian, سپاس (sepâs) Listen is a formal, written word; in everyday speech Iranians say مرسی (mersi) or ممنون (mamnun). In Kurdish, spas and supas are the ordinary, everyday “thanks.”

Related words changed by sound shifts

These patterns are regular, which is good news for learners. Once you notice that a Persian m or b often matches a Kurdish v or w, words like نام / nav and چشم / çav stop looking like strangers. The Persian word for “name” in daily speech is actually اسم (esm), borrowed from Arabic, while نام (nâm) Listen is the older Persian word, used in writing and in set phrases.

Everyday words that are completely different

These are exactly the high-frequency words that fill every sentence, which is one reason a Persian speaker loses the thread of Kurdish speech so quickly even when many nouns are familiar. Interesting detail: Persian does have the word باش (bâsh), but it means “be” (the command form of “to be,” as in مواظب باش, movâzeb bâsh, “be careful”), not “good.”

Greetings side by side

For more on Persian greetings and how Iranians actually use them, see how to say hello in Persian.

Numbers 1 to 10

Numbers are one of the places where the family link is easiest to see.

To go further with Persian numbers, including how to write the Persian digits, see Persian numbers from 1 to 1000.

Grammar: where the two really part ways

Vocabulary is what people notice first, but grammar is what makes Kurdish and Persian feel like different languages. Here are the five differences that matter most.

1. Grammatical gender (Kurmanji only)

Persian has no grammatical gender at all: او (u) means both “he” and “she,” and nouns are never masculine or feminine. Sorani is the same. Kurmanji, however, divides nouns into masculine and feminine, and the difference shows up in endings, for example in the linking ending between a noun and the word that describes it. A Persian speaker learning Kurmanji has to learn the gender of every noun, much as an English speaker learning German or French does.

2. The linking ending (ezafe)

Both languages join a noun to an adjective or owner with a small linking vowel, which Persian grammar calls the ezâfe. In Persian it is always -e (or -ye after a vowel), whatever the noun:

• اسم من (esm-e man) Listen: my name
• زبان کردی (zabân-e kordi): the Kurdish language

Sorani also uses one main form, -î: ناوی من (nawî min), “my name.” Kurmanji changes the ending by gender and number: navê min (“my name,” with -ê because nav is masculine). So the idea is shared, but the details are not.

3. The past tense of transitive verbs

This is the difference that surprises Persian speakers most. In Persian, the verb always agrees with the subject, in every tense:

• من نان خوردم. (man nân khordam.) Listen: I ate bread. The ending -am matches “I.”

Kurdish uses what linguists call a split-ergative pattern. In the present tense it works much like Persian, but in the past tense of verbs that take an object, the roles flip: the subject takes a different form, and in Kurmanji the verb agrees with the object instead of the subject. In Kurmanji, “I ate bread” is Min nan xwar, with min (not the usual ez) for “I.” In Sorani the person marker moves and attaches to another word in the sentence, so the same idea comes out as نانم خوارد (nanim xward), with -im on “bread.” For a learner going from either language to the other, this is the single hardest grammar habit to change.

4. “The” and “a”

Persian has no word for “the.” A plain noun is often understood as definite, and an object that is definite takes را (râ), spoken -ro or -o. For “a,” Persian adds -i or uses یک (yek), spoken ye: یک کتاب (ye ketâb), “a book.” Sorani has a real definite suffix, -eke: کتێب (kitêb) is “book,” کتێبەکە (kitêbeke) is “the book,” and کتێبێک (kitêbêk) is “a book.” Kurmanji, on the other hand, has no -eke.

5. The present-tense prefix

Persian marks the present with می‌ (mi-): می‌روم (miravam), spoken می‌رم (miram) Listen, “I go” or “I am going.” Kurmanji uses di- (ez diçim, “I go”) and Sorani uses de- (دەچم, deçim). The prefixes do the same job, but the verb roots are often different, as with Persian رفتن (raftan, to go) and Kurdish çûn.

What they share

The two languages do have a lot in common at the level of sentence shape. Both put the verb at the end of the sentence (subject, object, verb), both use prepositions such as Persian از (az, from) and به (be, to), both build many verbs from a noun plus a light verb (Persian کار کردن, kâr kardan, “to work,” literally “work do”), and both have absorbed many Arabic words, though Sorani often reshapes them to its own spelling. A Kurdish speaker learning Persian already “thinks” in a similar sentence order, which is a real head start.

Sounds and pronunciation

The two languages share most of their consonants, including kh, gh, sh, ch and zh, so neither group struggles with the other’s harder sounds the way English speakers do. Kurdish has a few distinctions Persian does not make, such as two kinds of r (a single tap and a rolled r, written ڕ in Sorani) and a dark l (ڵ in Sorani). Kurdish also has a richer set of vowels, including ê, which Persian lacks.

Persian, for its part, has the long â, a deep “aw”-like a that is one of its most recognizable sounds. Learners from a Kurdish background often need a little practice with it. Our guide to Persian pronunciation for beginners covers each sound.

Can Kurdish and Persian speakers understand each other?

Not easily, without exposure. A Persian speaker who has never studied Kurdish will catch familiar words (nan, sal, dil, roj) and can sometimes guess the topic of a conversation, but will not follow the sentences. The different pronouns, everyday verbs and grammar get in the way quickly, and the past-tense pattern changes the shape of many sentences.

In practice, though, understanding is often one-sided. Most Kurds in Iran grow up bilingual, because Persian is the language of schooling, government, television and the wider economy, so they understand and speak Persian well. Most Persian speakers, by contrast, have had little contact with Kurdish and understand very little of it. Within Kurdish, the variety you hear also matters: Southern Kurdish around Kermanshah has been in close contact with Persian and can feel more familiar to Persian ears than Kurmanji does.

Shared literature and culture

Kurdish and Persian speakers share a long history and many traditions. Nowruz, the spring new year, is celebrated by both (read more in our post on Nowruz), and classical Persian poetry was widely read and written by Kurdish scholars for centuries. Kurdish also has its own literary tradition; one of its best-known classics is Ehmedê Xanî’s epic Mem û Zîn, written in Kurmanji in the 17th century.

Is Persian or Kurdish easier to learn?

For an English speaker, Persian is generally the easier start. Its grammar is regular, it has no grammatical gender and no ergative past tense, and there are many more textbooks, courses, apps and tutors. The main challenge is the script and reading without written short vowels. Kurdish grammar is somewhat more complex (especially Kurmanji, with gender and case), and learning materials are fewer and often focus on only one variety. On the other hand, Kurmanji’s Latin alphabet makes reading easy from day one.

For a speaker of one of them, the other is much easier than an unrelated language such as Arabic or Turkish. Compare our posts on Farsi vs Arabic and Farsi vs Urdu to see how differently Persian relates to its neighbors.

Key Persian words for this topic

Two useful sentences: کردی یک زبان جداست. (kordi yek zabân-e jodâst.) Listen “Kurdish is a separate language.” And, spoken, شما کردی بلدید؟ (shomâ kordi baladid?) Listen “Do you speak Kurdish?” You can look up more words in our Persian dictionary.

Want more practice with Persian itself? Test yourself with the Farsi level test or the Persian vocabulary quiz.

Common questions

Is Kurdish a dialect of Persian?

No. Kurdish is a separate Iranian language (or group of closely related varieties) that developed alongside Persian, not from it. The two share many related words, but basic vocabulary, sounds and grammar differ enough that speakers do not understand each other without learning the other language.

Can Persian speakers understand Kurdish?

Only a little. A Persian speaker will recognize scattered words, especially in Southern Kurdish and Sorani, but not follow a conversation. Kurds in Iran, on the other hand, usually understand Persian well because they learn it at school.

Is Kurdish closer to Persian or Arabic?

Much closer to Persian. Kurdish and Persian are both Indo-European languages of the Iranian branch, while Arabic is a Semitic language from a different family. Kurdish has borrowed Arabic words, as Persian has, but its grammar and core vocabulary are Iranian.

Do Kurds use the Persian alphabet?

Sorani Kurdish uses an Arabic-based alphabet that looks very much like Persian, but it adds letters for vowels and some sounds (ە, ێ, ۆ, ڵ, ڕ, ڤ) and writes every vowel. Kurmanji Kurdish is mostly written in a Latin alphabet.

Which is older, Kurdish or Persian?

Both go back to Old Iranian languages spoken thousands of years ago, so neither is simply “older.” Persian has the longer written record, starting with Old Persian royal inscriptions of the Achaemenid period, while a written Kurdish literature appears much later, with classics such as Mem û Zîn in the 17th century.

Should I learn Kurdish or Persian?

Choose by your goals. Persian has more speakers, more learning resources and opens up Iran, Afghanistan, Tajikistan and classical Persian poetry. Learn Kurdish if you have Kurdish family, friends or work in Kurdish-speaking areas, and pick the variety (Kurmanji, Sorani or Southern Kurdish) that your community speaks.

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