Boy names that start with K range from familiar picks like Kai, Kevin and Knox to rare finds like Kentigern and Kester, and this list of 126 gives a checked origin and meaning for every one.
Boy names that start with K have a bright, confident sound, and the letter reaches much further than the modern surname names you hear most. No K name sits in the U.S. top 10 for boys born in 2025, according to the Social Security Administration, which leaves plenty of room to find something that feels like yours.
We grouped the K boy names by style: familiar, unique, strong, short, long, vintage, nature, mythology, biblical, international and gender neutral. Then come name families and nicknames, sibling and middle name ideas, and a quick initials check.
Key Takeaways
- No K name is in the boys’ top 10 for 2025, according to the Social Security Administration.
- Familiar K names for boys include Kai, Kevin, Kenneth, Kyle, Knox, Kingston, Kaleb and Keith.
- Rare options include Kester, Kennard, Kynaston, Keefe and Kentigern.
- Akan day names such as Kwasi, Kofi and Kwame carry a clear meaning: the day of the week a child was born.
- Some well known K names, such as Kai and Kamau, have an uncertain or unknown meaning, and an honest list says so.
Table of Contents
Boy Names That Start With K at a Glance
Quick Answer
Every origin and meaning on this page was checked against the name’s own entry on Behind the Name in October 2026. Where the reference calls a meaning unknown, uncertain or only possible, we print it that way.
How to read the tables: the Origin column uses the reference’s own usage labels, so “English (modern)” and “English (rare)” are its wording. When the Meaning column says a name is a variant, form or short form of another name, that is what the entry states, and the root name’s meaning is added only where we checked that entry too.
We start with the best known baby boy names that start with K. For ideas across the whole alphabet, browse our main list of baby boy names.
| Name | Origin | Meaning |
|---|---|---|
| Kai | Frisian, German, Scandinavian, Finnish, Dutch, English | Meaning uncertain; possibly a Frisian diminutive of Gerhard, Nicolaas, Cornelis or Gaius; the boy taken by the Snow Queen in Hans Christian Andersen’s 1844 fairy tale |
| Kevin | English, Irish | Anglicized form of the Irish Caoimhín: “beloved birth,” from Old Irish words for “dear, gentle” and “birth”; Saint Kevin founded a 6th century monastery at Glendalough |
| Kenneth | Scottish, English, Scandinavian | Anglicized form of the Gaelic Coinneach and the medieval Scottish Cináed; borne by Cináed mac Alpin, the 9th century king who united the Scots and Picts |
| Kyle | English | From a Scottish surname based on place names, from Gaelic caol: “narrows, channel, strait” |
| Knox | English | From a Scottish surname taken from places called Knock, from Gaelic cnoc: “round hill” |
| Kingston | English (modern) | From a surname and place name: “king’s town” in Old English |
| King | English | From the English word king, from Old English cyning |
| Kaleb | English (modern) | English variant of Caleb, which most likely comes from Hebrew kelev, “dog” (another theory reads it as “whole heart”) |
| Keith | English, Scottish | From a Scottish surname taken from an estate in East Lothian, possibly from a Celtic word for “wood” |
| Kendrick | English | From a surname with several possible sources, among them Old English “royal power” or “bold power,” a Welsh name meaning “chief hero,” and a Gaelic surname meaning “son of Henry” |
| Kieran | Irish, English | Anglicized form of Ciarán |
| Keegan | English | From an Irish surname, Mac Aodhagáin, built on a double diminutive of the old Irish name Aodh |
| Kane | English (modern) | From the Irish surname Ó Catháin, based on the given name Cathán |
| Kash | English (modern) | Variant of Cash, from the surname |
| Kyrie | African American (modern) | Created from sounds in Tyree and Kyle; made famous as a boy’s name by basketball player Kyrie Irving |
| Kaiden | English (modern) | Variant of Caden |
| Kaden | English (modern) | Variant of Caden |
| Kyler | English (modern) | Probably a blend of Kyle and Tyler; also a surname from the Dutch Cuyler (the reference calls the origin uncertain) |
| Kellan | English (modern) | Variant of Kellen |
| Keaton | English (modern) | From an English surname taken from several place names |
According to the Social Security Administration (SSA), no K name is in the boys’ top 10 for 2025. The names above are still familiar on playgrounds and in classrooms, which makes them an easy middle ground between a chart topper and a name nobody has heard.
A few notes on this table. Kai has an honest “meaning uncertain” in the reference, even though it is one of the best known K names. Kaiden and Kaden are two spellings of one name, and so are Kaleb and the biblical Caleb. Knox opens with a silent K: Behind the Name gives its American pronunciation as /ˈnɑks/. Kayden, Karter, Kameron and Kingsley are just as familiar, but you will find them in the gender neutral table, because the reference lists each one for boys and girls.
The SSA ranks each spelling separately, so Kaiden, Kaden and Kayden each get their own rank even though people hear the same name.
Unique, Rare and Strong Boy Names That Start With K
If you want unique boy names that start with K, look past the modern surname names and into older English and Irish history. Behind the Name marks most of these as rare in English, yet each one is easy to read and say.
| Name | Origin | Meaning |
|---|---|---|
| Kester | English (rare) | Short form of Christopher |
| Kennard | English (rare) | From a surname based on the Old English names Cyneweard or Cyneheard |
| Kenrick | English (rare) | Variant of Kendrick (the reference marks the etymology uncertain) |
| Kynaston | English (rare) | From a surname and place name: “Cynefrið’s town” in Old English |
| Keefe | English (rare) | From the Irish surname Ó Caoimh, based on the name or byname Caomh |
| Knute | English (American, rare) | Variant of Knut, from Old Norse knútr; this spelling is most widespread in America |
| Kentigern | History (ecclesiastical) | A Brythonic name: the second part is from Celtic tigernos, “lord, ruler,” and the first may mean “first” or “dog, hound”; a 6th century saint and the patron saint of Glasgow |
| Kipling | English (rare) | From an English surname and place name, roughly “Cyppel’s people”; known through author Rudyard Kipling (1865 to 1936) |
| Kenyon | English | From an English surname based on a place name whose meaning is uncertain |
These rare names come with real stories. Kentigern was a 6th century saint and is the patron saint of Glasgow. Kipling points to the author of The Jungle Book. Kennard and Kynaston are old English surnames built on Anglo-Saxon personal names, and Kester is a short form of Christopher with a gentle, old-world sound. Keefe is pronounced /ˈkif/, like “keef,” per the reference.
For a broader set of uncommon picks, see our unique boy names list. To see how rare a name is, try the Popularity of a Name search on the SSA baby names page.
Strong or cool boy names that start with K often get their strength from meaning. Here you will find a champion, a king, a ruler’s title, “brave counsel” and “eternal.”
| Name | Origin | Meaning |
|---|---|---|
| Konrad | German, Scandinavian, Polish, Slovene | Form of Conrad: “brave counsel,” from Old German words for “brave” and “counsel” |
| Kurt | German, English, Scandinavian | German contracted form of Conrad |
| Karl | German, Scandinavian, Icelandic, English, Finnish, Estonian | German and Scandinavian form of Charles; the Germanic Karl probably comes from a word meaning “man”; borne by Frankish and Holy Roman rulers and ten Swedish kings |
| Kasimir | German (rare) | German form of Casimir, from Slavic words for “to destroy” and “peace, world” |
| Kgosi | Tswana | “King, chief” |
| Kaiser | Various | German form of the Roman title Caesar; the reference notes it is not used as a given name in Germany itself |
| Kemp | English (rare) | From a surname based on Middle English kempe: “champion, athlete, warrior” |
| Khalid | Arabic, Urdu, Bengali, Malay, Chechen | “Eternal,” from an Arabic verb meaning “to last forever” |
| Kabir | Arabic | “Greatness, magnificence” in Arabic; Kabiru is the Hausa form |
Konrad and Kurt are relatives: Kurt began as a German contraction of Conrad, so both carry the “brave counsel” meaning. Karl, which probably goes back to a Germanic word for “man,” has been carried by Frankish and Holy Roman rulers and ten Swedish kings. Kgosi, from Tswana, means “king” or “chief” outright.
Short K Names for Boys (3 to 4 Letters)
Short K names are crisp and hard to shorten further. The hard K sound gives even a three letter name a confident start.
| Name | Origin | Meaning |
|---|---|---|
| Kip | English | A nickname, probably from the English word kipper, a male salmon |
| Kirk | English | From an English and Scottish surname meaning “church,” from Old Norse kirkja, ultimately from Greek kyriakon |
| Kent | English | From a surname taken from the county of Kent, possibly from a Brythonic word for “border, edge, coast” |
| Kjell | Swedish, Norwegian | Variant of Ketil, from Old Norse |
| Klay | English (modern) | Variant of Clay |
| Kole | English (modern) | Variant of Cole |
| Kody | English (modern) | Variant of Cody |
| Kev | English | Short form of Kevin |
| Koda | English (modern) | Inspired at least partly by a character in the 2003 animated film Brother Bear; the filmmakers reportedly took it from a Lakota or Dakota word for “friend, companion” |
More short K names are filed elsewhere on this page so that no name repeats: Kai, Kit, Koa, Kris, Kofi, Kimo, Kian, Karl, Kurt, Kemp, Kane, Kash, Kyle and King are all three or four letters. Several short K names began as spellings of C names (Klay, Kole, Kody), so if you like Clay, Cole or Cody, the K version is a small twist.
Long, Elegant and Vintage K Names
Longer K names give you a formal option on paper and room for a nickname at home. Several are K spellings of names more often written with C or Ch.
| Name | Origin | Meaning |
|---|---|---|
| Kristopher | English | Variant of Christopher, from Greek words for “Christ” and “to bear”: “Christ-bearer” |
| Konstantin | Russian, Serbian, Bulgarian, Macedonian, German, Estonian, Finnish, Hungarian | Form of Constantine |
| Kyriakos | Greek, Ancient Greek | Greek form of Cyriacus, from Greek kyrios |
| Kristian | Swedish, Norwegian, Danish, Finnish, Bulgarian | Form of Christian |
These vintage picks feel like grandfather names, in the best sense. They are familiar to older generations and rare in nurseries today.
| Name | Origin | Meaning |
|---|---|---|
| Kermit | English | From a rare Americanized form of a Manx surname, a variant of the Irish Mac Diarmada (from Diarmaid); Theodore Roosevelt gave it to a son born in 1889 |
| Kimball | English | From a surname based on the Welsh name Cynbel or the Old English name Cynebald |
| Kenny | Scottish, English | Diminutive of Kenneth |
| Kurtis | English | Variant of Curtis |
| Kenton | English | From a surname and Old English place name: “town on the River Kenn” or “royal town” |
If you love the warmth of Kenny but want a formal version on the birth certificate, the reference ties it to Kenneth, so you can register one and use the other.
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Nature K Names: Trees, Weather and Stars
These names connect to the natural world through their stated meaning: a Hawaiian tree, lightning, a Scottish river, clay, a lion cub and the Pleiades star cluster. Two more water names sit in the gender neutral table: Kaimana, from Hawaiian words for “sea” and “power,” and Keshet, Hebrew for “rainbow.”
| Name | Origin | Meaning |
|---|---|---|
| Koa | Hawaiian | “Warrior” or “koa tree” in Hawaiian |
| Kidlat | Tagalog | “Lightning” |
| Kelvin | English | Probably from a Scottish river, possibly “narrow water”; physicist William Thomson took his title, Lord Kelvin, from it |
| Kaolin | English (rare) | Anglicized form of the Irish Caolán; kaolin is also the name of a type of clay |
| Kfir | Hebrew | “Lion cub” |
| Kartik | Hindi, Marathi, Bengali | From Sanskrit Kṛttikā, the name of the Pleiades star cluster |
Kyle and Knox, in the first table, are landscape names too: Kyle comes from a Gaelic word for a narrow channel of water and Knox from a word for a round hill. Kaito, in the international table, can be written with the kanji for “sea.”
Mythology and Biblical Boy Names That Start With K
Greek, Finnish, Egyptian, Turkic and Hindu traditions all supply K names. For Kadmos the reference calls the etymology unclear, and for Kastor and Kalervo it gives only possible sources, so that is how we print them.
| Name | Origin | Meaning |
|---|---|---|
| Kadmos | Greek mythology | Greek form of Cadmus (etymology unclear); the Phoenician prince who searched for his sister Europa, founded Thebes and, in legend, brought the alphabet to Greece |
| Kastor | Greek mythology | Greek form of Castor, possibly from a verb meaning “to excel, to shine” (a link to the Greek word for “beaver” is also proposed); a son of Zeus and twin of Pollux |
| Kalervo | Finnish, Finnish mythology | Possibly a blend of Kaleva and Kullervo; the father of Kullervo in the Kalevala |
| Kullervo | Finnish, Finnish mythology | From Finnish kulta, “gold”; a tragic young hero of the Kalevala |
| Khonsu | Egyptian mythology | From an Egyptian word meaning “traveler”; a moon god, the son of Amon and Mut |
| Korkut | Turkic mythology | Probably linked to the Turkish verb korkutmak, “to frighten, to scare”; the storyteller of the 14th century epic Book of Dede Korkut |
| Kartikeya | Hinduism | From Sanskrit Kṛttikā, the Pleiades; another name for the god Skanda, who was raised by the Krittikas |
Kalervo and Kullervo come as a pair from the Finnish epic, the Kalevala: Kalervo is the father of Kullervo. Kadmos and Kastor are the Greek spellings of the more familiar Latin forms Cadmus and Castor, and the reference notes that a star in the constellation Gemini carries Castor’s name.
Biblical boy names that start with K are few, because many biblical names that sound like K are spelled with C in English (Caleb, Cephas, Cyrus). The K forms below come from Hebrew and Greek, and Behind the Name lists each one. If a K spelling of a C name appeals to you, Kaleb in the first table is the familiar choice.
| Name | Origin | Meaning |
|---|---|---|
| Kenan | Biblical | Meaning uncertain, possibly from a Hebrew word for “possession”; a son of Enosh and great-grandson of Adam (Old Testament) |
| Kenaniah | Biblical | “Yahweh establishes” in Hebrew; two minor figures in the Old Testament |
| Kephas | Biblical Greek | Greek form of Cephas, Aramaic for “rock”: the name Jesus gave the apostle Simon (Peter) |
| Kyros | Old Persian (Hellenized), Biblical Greek | Greek form of the Old Persian name behind Cyrus, whose meaning is uncertain; Cyrus the Great freed the captive Jews after conquering Babylon (Old Testament) |
| Kalev | Biblical Hebrew | Hebrew form of Caleb, one of the twelve spies Moses sent into Canaan |
Kephas is a quiet way to honor the apostle Peter, since Cephas, its Latin spelling, is Aramaic for “rock,” and most New Testament translations render it in Greek as Petros, Peter in English. Kalev is the Hebrew form of Caleb, and the reference notes that Caleb and Joshua were the only Israelites who left Egypt and lived to see the Promised Land.
International K Names by Language
The origin labels below are the reference’s own usage labels. Where an entry says only that a name is the form of another name in a given language, we print that and point you to the root.
| Name | Origin | Meaning |
|---|---|---|
| Kacper | Polish | Polish form of Jasper, possibly from a Hebrew word for “treasurer” that goes back to Old Persian; traditionally one of the Magi |
| Kaspar | German, Estonian | German and Estonian form of Jasper |
| Klaus | German, Danish, Norwegian, Finnish | German short form of Nicholas, now a name of its own |
| Kostas | Greek, Lithuanian | Short form of Konstantinos (Greek) and Konstantinas (Lithuanian) |
| Kirill | Russian | Russian form of Cyril, from Greek kyrios |
| Karol | Polish, Slovak, Slovene | Form of Karl |
| Károly | Hungarian | Hungarian form of Karl |
| Kálmán | Hungarian | Probably of Turkic origin and may mean “remainder”; a 12th century king of Hungary |
| Kylian | French | French variant of Cillian |
| Kilian | German, Spanish, Irish, French | Form of Cillian |
| Kalle | Swedish, Finnish, Estonian | Swedish pet form of Karl, also used on its own in Finland and Estonia |
| Kimi | Finnish | Diminutive of the Scandinavian name Kim |
Several European K names are family members. Karol, Károly and Kalle all come from Karl. Kacper and Kaspar are forms of Jasper. Kylian and Kilian are French, German and Spanish forms of the Irish name Cillian.
| Name | Origin | Meaning |
|---|---|---|
| Karim | Arabic, Persian, Tajik, Uzbek, Kazakh and more | “Generous, noble” in Arabic |
| Kareem | Arabic | Another transcription of Karim |
| Kerem | Turkish | Turkish form of Karim |
| Kamal | Arabic, Persian, Urdu, Bengali, Malay, Indonesian | “Perfection” in Arabic |
| Kemal | Turkish | Turkish form of Kamal |
| Kian | Persian | Said to mean “king,” “foundation” or “symbol of pride” |
| Karan | Hindi, Marathi, Gujarati, Punjabi | From Sanskrit karaṇa, “clever, skillful” |
| Kishan | Hindi, Gujarati | Possibly a variant of Krishna (the reference calls the etymology uncertain) |
| Kenji | Japanese | From kanji such as 健 “healthy, strong” or 研 “study, sharpen” plus 二 “two”; other kanji are possible |
| Kaito | Japanese | From 海 “sea” plus 斗 (a Chinese constellation) or 翔 “soar, fly”; other kanji are possible |
| Kazuki | Japanese | From kazu, 一 “one” or 和 “harmony, peace,” plus ki, 輝 “brightness,” 希 “hope” or 樹 “tree” |
| Khoa | Vietnamese | From Sino-Vietnamese khoa: “science, branch of study” |
| Keoni | Hawaiian | Hawaiian form of John (“Yahweh is gracious”) |
| Kimo | Hawaiian | Hawaiian form of James |
| Kwasi | Akan | “Born on Sunday” |
| Kwabena | Akan | “Born on Tuesday” |
| Kofi | Akan | “Born on Friday” |
| Kwame | Akan | “Born on Saturday” |
| Kunle | Yoruba | Short form of Adekunle, Ayokunle or Olakunle |
| Kabelo | Sotho, Tswana | “Portion, share, gift” |
| Kamau | Kikuyu | Meaning unknown; the birth name of Kenyan president Jomo Kenyatta |
The Akan day names are a lovely tradition with a clear meaning: Kwasi means “born on Sunday,” Kwabena “born on Tuesday,” Kofi “born on Friday” and Kwame “born on Saturday.” If you want a name that marks the day your son arrived, these carry that meaning in the Akan language.
Japanese names like Kenji, Kaito and Kazuki depend on the kanji chosen, so the same sound can carry different meanings. Karim, Kareem and Kerem belong to one family, and so do Kamal and Kemal.
Print accents exactly as the reference spells the name: Károly, Kálmán, Kṛttikā (the root of Kartik) and Māori. U.S. paperwork does not always carry accents, so decide ahead of time whether you are comfortable seeing the name without its mark on some documents. If a name comes from a culture outside your own family, learn how it is said and used before you commit.
Gender Neutral K Names
Behind the Name lists each of these as both masculine and feminine. Some lean one way: the reference notes that Kelly was mostly a boy’s name before 1940, Kendall was originally mostly masculine, and Krishna is used more often for boys. For more choices, see our gender neutral names guide.
| Name | Origin | Meaning |
|---|---|---|
| Kayden | English (modern) | Variant of Caden |
| Karter | English (modern) | Variant of Carter |
| Kameron | English (modern) | Variant of Cameron; short forms Cam and Kam |
| Kingsley | English (modern) | From a surname and Old English place name: “king’s wood” |
| Kit | English | Diminutive of Christopher or Katherine; frontiersman Kit Carson (1809 to 1868) bore it |
| Kris | English, Flemish, Danish | Short form of Kristian, Kristoffer and other names that begin with Kris |
| Kirby | English | From a surname based on an Old Norse place name: roughly “church settlement” |
| Kelly | Irish, English | Anglicized form of the Irish Ceallach or the surname Ó Ceallaigh; mostly a boy’s name before 1940 |
| Kendall | English | From a surname linked to Kendale: “valley on the river Kent”; originally mostly masculine |
| Kennedy | English, Irish | From the Irish surname Ó Cinnéidigh, based on the given name Cennétig |
| Kerry | English | From the Irish county Ciarraí: “Ciar’s people” |
| Kasey | English | Variant of Casey |
| Kiran | Hindi, Marathi, Kannada, Telugu, Malayalam, Tamil, Gujarati, Nepali, Urdu | From Sanskrit kiraṇa: “dust, thread, sunbeam” |
| Krishna | Hinduism, Hindi and other Indian languages | From Sanskrit “black, dark”; a Hindu deity regarded as an incarnation of Vishnu (used more often for boys) |
| Keanu | Hawaiian | “The cool breeze,” from ke (the) plus anu (coolness) |
| Kaimana | Hawaiian | From Hawaiian words for “sea” and “power”; also the Hawaiian word for “diamond,” borrowed from English |
| Kiwa | Māori, Polynesian mythology | “Dark” in Māori; a guardian of the ocean in Māori tradition |
| Keshet | Hebrew | “Rainbow” |
| Kagiso | Tswana | “Peace” |
Why K Names Are Loved, Plus Nicknames
A few plain reasons parents keep circling back to this letter:
- The hard K sound is clear and energetic, and it holds up well when you call a name across a park.
- The range is wide: one syllable (Knox, Kirk, Kent) to four (Kentigern, Kartikeya), old saints and kings to modern surnames.
- Many K names are spelling twins of C names (Kaleb and Caleb, Kody and Cody), so you can keep a sound you love with a different look.
- K names come from nearly every part of the world, from Akan day names to Finnish epic heroes.
Name families make it easy to honor a relative without repeating a name exactly:
- The Karl family: Karl, Karol, Károly and Kalle.
- The Conrad family: Konrad and Kurt.
- The Christopher family: Kristopher, Kester, Kit and Kris.
- The Karim family: Karim, Kareem and Kerem.
- The Caden spellings: Kaiden, Kaden and Kayden.
Nicknames below are listed as short forms, pet forms or diminutives in the reference entries we checked.
| Full name | Nickname ideas |
|---|---|
| Kenneth | Ken, Kenny |
| Kevin | Kev |
| Christopher, Kristopher | Kit, Kris, Kester |
| Kameron | Kam, Cam |
| Karl | Kalle (Swedish pet form) |
| Konrad, Kurt | Kuno (listed by the reference as a German diminutive) |
| Konstantin | Kostya (Russian), Kosta (Serbian, Bulgarian, Macedonian), Konsta (Finnish) |
| Kurtis | Curt |
Sibling, Twin and Middle Name Ideas
These pairings are ideas, not rules. Brother or twin sets that share a letter work best when the names differ in length, ending or rhythm:
- Knox and Kenneth
- Kai and Keaton
- Kofi and Kwame
- Konrad and Karl
- Kenji and Kaito
- Kip and Kendrick
- Kalervo and Kullervo (for fans of the Kalevala)
- Karim and Kamal
- Kirk and Kingston
- Kevin and Keegan
You can also pair brothers by meaning. Kgosi and King both mean king, Koa and Kemp both carry a warrior sense, and Kidlat and Kartik both look to the sky.
For a sister, the unisex picks Keshet, Kagiso and Kiran keep the letter, or browse our same-day lists of girl names that start with M and girl names that start with S. For a brother with a different initial, try boy names that start with C, boy names that start with L, boy names that start with E or boy names that start with A.
For middle names, contrast helps. A one syllable first name like Knox or Kai can carry a longer middle, and a long first name like Kristopher or Konstantin is balanced by a short one. Ideas that use the 2025 top 10: Kai Theodore, Knox William, Keegan James and Kenji Lucas. K names make good middle names too: Kai, Kit and Kent sit comfortably in the second slot. Our middle names guide has more.
The Initials Check and Other Quick Tests
Before you settle on boy names that start with K, run each finalist through a few quick tests:
- Initials: write out first, middle and last initials. K.I.D. and K.E.N. are charming; check that yours do not spell something you would rather avoid, and swap the middle name if they do.
- Say it out loud: call the full name across a room. A first name that ends in a K sound (Kirk, Kendrick) can run into a surname that starts with K or C.
- Spelling: many K names have a C twin (Kaleb and Caleb, Kody and Cody, Kameron and Cameron). Decide whether you mind correcting people.
- Silent K: Knox begins with a silent K in English, so some people may misspell it the first time they hear it.
- Nicknames: check the table above. If you dislike the obvious short form, assume someone will use it anyway.
If rarity matters to you, the SSA also links to name popularity by state, so look your favorite up for your own state as well as nationally.
Related Betteroo Guides
- Boy names that start with C
- Boy names that start with L
- Baby boy names
- Unique boy names
- Japanese boy names
- Gender neutral names
The Bottom Line
Boy names that start with K run from familiar picks like Kai, Kevin and Kenneth to rare finds like Kentigern, Kynaston and Kester, with names from Hebrew, Arabic, Turkish, Persian, Hindi, Japanese, Vietnamese, Hawaiian, Akan, Yoruba and Tswana in between. Shortlist three to five, read the real meaning, test the initials and say each one out loud for a week.
Once the name is settled, the rest of the alphabet is still there if your shortlist needs one more option: every letter page lists checked meanings the same way.
Frequently Asked Questions
What are the most popular boy names that start with K?
No K name is in the boys’ top 10 for 2025, according to the Social Security Administration. Familiar K names you will still hear often include Kai, Kevin, Kenneth, Kyle, Knox, Kingston, Kaleb, Keith, Kendrick and Kayden. Each spelling is ranked separately, so Kaiden, Kaden and Kayden count as different names in the data.
What are unique or rare K names for boys?
Rare K names include Kester, Kennard, Kenrick, Kynaston, Keefe, Knute and Kentigern. Behind the Name marks most of them as rare in English. Kentigern was a 6th century saint and is the patron saint of Glasgow, while Kester is a short form of Christopher with an old English feel.
What are strong K names for boys?
Meaning can guide you. Konrad means brave counsel, Kemp comes from a Middle English word for champion or warrior, Kgosi means king or chief in Tswana, Khalid means eternal and Kaiser is the German form of the title Caesar. Koa can mean warrior in Hawaiian, and Kfir means lion cub in Hebrew.
What are biblical boy names that start with K?
Biblical K names include Kenan, a great-grandson of Adam; Kenaniah, meaning Yahweh establishes; Kephas, the Greek form of Cephas, the name Jesus gave Peter; Kyros, the Greek form behind Cyrus; and Kalev, the Hebrew form of Caleb. Many biblical names with a K sound are spelled with C in English.
What are short K names for boys?
Three letter K names include Kai, Kit, Kip, Koa and Kev, and four letter choices include Kirk, Kent, Klay, Kole, Kody, Koda, Karl, Kurt, Kemp, Knox, Kyle and King. Several began as short forms or spellings of C names: Kev comes from Kevin, and Klay, Kole and Kody are variants of Clay, Cole and Cody.
Which K names work for both boys and girls?
Behind the Name lists Kayden, Karter, Kameron, Kingsley, Kit, Kris, Kirby, Kelly, Kendall, Kennedy, Kerry, Kasey, Kiran, Krishna, Keanu, Kaimana, Kiwa, Keshet and Kagiso as both masculine and feminine. Some lean one way: Kelly was mostly a boy’s name before 1940, and Krishna is used more often for boys.
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Related Betteroo Guides
7 Sources
- Social Security Administration. Popular Baby Names (top 10 names of 2025).
https://www.ssa.gov/oact/babynames/index.html - Behind the Name. Browse Names: masculine names with the first letter K.
https://www.behindthename.com/names/gender/masculine/letter/k - Behind the Name. English masculine names starting with K.
https://www.behindthename.com/names/gender/masculine/usage/english/letter/k - Behind the Name. Meaning, origin and history of the name Kai.
https://www.behindthename.com/name/kai-1 - Behind the Name. Meaning, origin and history of the name Kenneth.
https://www.behindthename.com/name/kenneth - Behind the Name. Meaning, origin and history of the name Kevin.
https://www.behindthename.com/name/kevin - Behind the Name. Meaning, origin and history of the name Kwasi.
https://www.behindthename.com/name/kwasi
