This list includes 26 Polish boy names that start with K, from “Kacper” to “Kwiryn”. They range from popular modern choices to traditional or saintly names, useful for parents, researchers, and cultural exploration.

Polish boy names that start with K are male given names used in Poland that begin with the letter K. Many reflect Slavic roots, Christian saints, or Latin influence, with “Kacper” being a long-standing popular example.

Below you’ll find the table with Name, Pronunciation, IPA, Meaning / Origin, and Common diminutive.

Name: The standard Polish form as used in records and everyday life, so you can identify the name clearly.

Pronunciation: A simple English-friendly respelling that helps you say the name correctly in conversation or when reading aloud.

IPA: The IPA transcription gives exact Polish pronunciation details for clarity and comparison across dialects.

Meaning / Origin: A concise one-line definition explains the name’s meaning or origin so you understand its cultural background.

Common diminutive: Lists familiar nicknames or short forms so you know informal alternatives parents and friends commonly use.

Polish boy names that start with K

NamePronunciationMeaning/OriginDiminutive
KacperKAHTS-per /ˈkat͡spɛr/From Persian/Latin, name of a Magus; “treasurer”Kacperek
KajKAI /kaj/Probably Scandinavian/Latin short form (Kai/Gaius)
Kajetankai-eh-TAN /kajɛˈtan/Latin Caietanus, “from Gaeta” (Italian)Kajtek
KamilKAH-meel /ˈkamil/Arabic via Latin/Slavic, “perfect, complete”Kamilek
KarolKAH-rol /ˈkarɔl/From Latin/Germanic Carolus (Charles), “man, free man”Karolek
Kazimierzkah-ZHEH-myesh /kaˈʑimjɛʂ/Old Slavic, traditionally “proclaimer of peace”Kazik
KasperKAH-sper /ˈkaspɛr/Variant of Kacper, name of a MagusKasperek
Klaudiuszklaw-DYOOSH /klawˈdjuʂ/Latin Claudius, “lame”Klaudek
KlemensKLEH-mens /ˈklɛmɛns/Latin Clement, “merciful”Klemek
Kordiankor-DYAN /kɔrˈdjan/Literary name popularized by Juliusz Słowacki’s drama
KonradKON-rad /ˈkɔnrat/Germanic, “bold counsel”Konradek
Konstantykon-STAN-tee /kɔnˈstantɨ/Latin Constantinus, “constant, steadfast”Kostek
Kornelkor-NEL /kɔrˈnɛl/From Latin Cornelius, “horned”Kornelek
Korneliuszkor-neh-LEE-oosh /kɔrnɛˈljuʂ/Latin Cornelius variantKornel
Kolomanko-LOH-man /kɔˈlɔman/Medieval/saint name (Saint Koloman), Central European origin
KosmaKOS-ma /ˈkɔsma/Greek Kosmas, “order, ornament”
Krwysztof — note: excluded
KrzysztofKSHISH-tof /ˈkʂɨʂtɔf/Polish form of Christopher, “Christ-bearer”Krzysiek
KrystianKRIS-tyan /ˈkrɨstjan/Latin Christianus, “follower of Christ”Krystek
Krzesimirkrzeh-SHEE-mir /kʐɛˈɕimʲɛr/Old Slavic compound, medieval Slavic origin
KryspinKRIS-pin /ˈkrɨspʲin/Latin Crispinus, “curly-haired”
KubaKOO-bah /ˈkuba/Polish diminutive of Jakub (Hebrew Jacob)Kubuś
Ksaweryksa-VEH-ree /ksaˈvɛrɨ/From Latin Xaverius (Xavier)Ksawek, Ksawcio
Kwirynkvi-RIN /kviˈrɨn/From Latin Quirinus, Roman/saint name
Klimentklee-MENT /kliˈmɛnt/Latin Clement variant, used in Slavic areasKlim
Konstancjuszkon-stan-CHOOSH /kɔnstanˈt͡sjuʂ/Latin Constantius, “steadfast”

Descriptions

Kacper
Very popular modern Polish name; biblical-Magi tradition. Frequently appears in top baby-name lists since the 1990s.
Kaj
Short, crisp name used occasionally in Poland; feels modern and international, sometimes chosen as standalone given name.
Kajetan
Classical name with a friendly diminutive. Known in Poland since the 18th–19th centuries; moderate contemporary use.
Kamil
Common, versatile name across generations; widespread in Poland and internationally.
Karol
Historic and beloved Polish name (e.g., Karol Wojtyła, Pope John Paul II); timeless and classic.
Kazimierz
Ancient Polish name borne by kings and places; formal and historical, still used today.
Kasper
Alternative spelling of Kacper; used historically and occasionally today; slightly more traditional feel.
Klaudiusz
Latin classic used in Poland; formal, occasionally seen among older and modern parents seeking a stately name.
Klemens
Traditional Christian name with ancient roots; used in historical records and modern Poland.
Kordian
Rare, literary name associated with Słowacki’s romantic hero; distinctive and poetic choice.
Konrad
Longstanding Germanic name in Poland; steady popularity and noble associations.
Konstanty
Old-fashioned elegance; historical nobility use and occasional modern revival.
Kornel
Literary and historical presence; understated, classic choice with friendly diminutive.
Korneliusz
Formal variant of Kornel; classical, sometimes used in full form.
Koloman
Rarely used; medieval saintly association gives it historical charm.
Kosma
Old Christian name (Saints Cosmas and Damian); uncommon but historically attested.
Krwysztof — note: excluded
Krzysztof
One of Poland’s most common traditional names; many famous bearers; solid and familiar.
Krystian
Modern variant of Krzysztof; popular from the late 20th century onward.
Krzesimir
Archaic Slavic name found in medieval records; rare and evocative choice for history lovers.
Kryspin
Ecclesiastical and historical name; uncommon today but seen in church calendars.
Kuba
Widely used as a legal given name; friendly, informal, extremely popular as a nickname.
Ksawery
Traditional name tied to Saint Francis Xavier; regained popularity—stylish, slightly aristocratic feel.
Kwiryn
Rare, old Christian name; appears in historical church records and hagiographies.
Kliment
Seen in Orthodox and Eastern-rite communities in Poland; rare but historically attested.
Konstancjusz
Very rare, formal historical variant of Konstanty; classical and antique in tone.
If you think there is a missing term, let us know using the contact form.