| Name | Group | Language of Origin | Languages of Use | Meaning/Translation or Related Words | US 2024 |
|---|
| Kieran | Kieran/Ciara | Old Irish | English, Irish | the black | #440 |
| Kieron | Kieran/Ciara | Old Irish | English, Irish | the black | |
| Kifli | Kefli | Arabic | Malay | | |
| Kilian | Cillian | Old Irish | German, English | maybe war, strife | |
| Killian | Cillian | Old Irish | German, English | maybe war, strife | #369 |
| Kilyan | Cillian | Old Irish | French | maybe war, strife | |
| Kim | Joachim/Joaquina | Hebrew | Scandinavian | Yahweh will establish | |
| Kimani | Kimani | Gikuyu | English, Gikuyu | maybe great | |
| Kimball | Kimball | Welsh | English | war chief | |
| Kimball | Kimball | Old English | English | Words: royal / bold, brave | |
| Kimi | Kimi | Finnish | Finnish | | |
| Kimo | Jacob/Jacqueline/Jakoba | Hebrew | Hawaii | Yahweh may protect; holder of the heel; supplanter | |
| Kimon | Kimon | Old Greek | Greek | | |
| King | King | English | English | king | #342 |
| Kingsley | Kingsley | Old English | English | Words: king / wood, clearing, meadow | #983 |
| Kingston | Kingston | Old English | English | king's town | #177 |
| Kiran | Kiran | Sanskrit | Hindi | ray of light | |
| Kirby | Kirby | Old Norse | English | maybe village with church | |
| Kiril | Cyrill/Cyrielle | Old Greek | Bulgarian | Words: lord | |
| Kirill | Cyrill/Cyrielle | Old Greek | Estonian | Words: lord | |
| Kirill | Cyrill/Cyrielle | Old Greek | Russian | Words: lord | |
| Kirk | Kirk | Old Norse | English | church | |
| Kirsten | Christian/Christine | Latin | German, Low German | Christian, disciple of Christ | |
| Kiwa | Kiwa | Maori | Maori | | |
| Kiyan | Kiyan | Unknown | German | | |
| Kiyansh | Kiyansh | Unknown | Indian | | |
| Kiyoshi | Kiyoshi | Japanese | Kanji symbol, Japanese | clear, clean | |
| Kjartan | Kjartan | Old Irish | Icelandic | Words: sea / warrior | |
| Kjeld | Kettil/Katla | Old Norse | Scandinavian | Words: kettle, helmet | |
| Kjell | Kettil/Katla | Old Norse | Scandinavian | Words: kettle, helmet | |
| Kjetil | Kettil/Katla | Old Norse | Scandinavian | Words: kettle, helmet | |
| Klaas | Nicholas/Nicole | Old Greek | German, Dutch, Low German | victory of the people | |
| Klaes | Klaus | Old Greek | Frisian | | |
| Klaudius | Claudius/Claudia | Latin | German | the limping | |
| Klaudiusz | Claudius/Claudia | Latin | Polish | the limping | |
| Klaus | Klaus | Old Greek | German | | |
| Kléber | Kléber | Old High German | French | maybe mason | |
| Klebert | Kléber | Old High German | French | maybe mason | |
| Klemens | Clement/Clemence/Clementine | Latin | German, Scandinavian, Polish | the merciful, the gentle | |
| Klemenz | Clement/Clemence/Clementine | Latin | German, Scandinavian, Polish | the merciful, the gentle | |
| Kleopas | Cleopas/Cleopha | Old Greek | German | glory of the father | |
| Kletus | Cletus | Old Greek | German | famous | |
| Kliment | Clement/Clemence/Clementine | Latin | Czech, Russian | the merciful, the gentle | |
| Knox | Knox | Old English | English | round hill | #209 |
| Knud | Knut | Old Norse | German, Scandinavian | knot | |
| Knut | Knut | Old Norse | German, Scandinavian | knot | |
| Koa | Koa | Hawaii | English, Hawaii | warrior | #292 |
| Koa | Koa | Maori | Maori | joy, happiness | |
| Kobe | Kobe | Swahili | English | tortoise | #408 |
| Köbi | Jacob/Jacqueline/Jakoba | Hebrew | German, Swiss German | Yahweh may protect; holder of the heel; supplanter | |
| Koby | Jacob/Jacqueline/Jakoba | Hebrew | English | Yahweh may protect; holder of the heel; supplanter | |
| Koda | Koda | Unknown | English | | #464 |
| Kody | Cody | Old Irish | English | Words: son | |
| Koen | Conrad/Konrada | Old High German | Dutch | Words: bold / counsel, advice, advisor | #681 |
| Koenraad | Conrad/Konrada | Old High German | Dutch | Words: bold / counsel, advice, advisor | |
| Kohen | Cohen | Hebrew | English | priest | #318 |
| Kolby | Colby | Old English | English | coal town | |
| Kole | Cole | Old English | English | the black | |
| Kolen | Nicholas/Nicole | Old Greek | Hungarian | victory of the people | |
| Kolja | Nicholas/Nicole | Old Greek | Russian | victory of the people | |
| Koloman | Koloman | Celtic | German | maybe hermit | |
| Kolos | Klaus | Old Greek | Hungarian | | |
| Kolson | Colson | English | English | son of Cole | #797 |
| Kolten | Colton | Old English | English | coal town | |
| Kolter | Colter | English | English | herder of horses | #834 |
| Kolton | Colton | Old English | English | coal town | #529 |
| Kolumban | Columbano | Latin | German | dove | |
| Konner | Connor | Old Irish | English | maybe dog lover | |
| Konnor | Connor | Old Irish | English | maybe dog lover | |
| Konrad | Conrad/Konrada | Old High German | German, Scandinavian, Polish | Words: bold / counsel, advice, advisor | |
| Konradin | Conrad/Konrada | Old High German | German | Words: bold / counsel, advice, advisor | |
| Konsta | Konstantin/Konstanze | Latin | Finnish | the steadfast | |
| Konstandin | Konstantin/Konstanze | Latin | Albanian | the steadfast | |
| Konstantin | Konstantin/Konstanze | Latin | German, Bulgarian, Hungarian, Russian | the steadfast | |
| Konstantínos | Konstantin/Konstanze | Latin | Greek | the steadfast | |
| Kooper | Cooper | Old English | English | cooper, barrel maker | |
| Koppány | Koppány | Unknown | Hungarian | | |
| Kor | Gor | Armenian | Armenian | fierce | |
| Korab | Korab | Unknown | Albanian | | |
| Koray | Koray | Turkish | Turkish | red moon | |
| Korbin | Corvin | Latin | English | Words: raven | |
| Korbinian | Korbinian | Old High German | German | Words: raven / raven | |
| Korbyn | Corvin | Latin | English | Words: raven | |
| Kordell | Cordell | Old English | English | maker of cord, seller of cord | |
| Kordt | Curt | Old High German | German | Words: bold / counsel, advice, advisor | |
| Korey | Corey/Corey | Latin | English | Words: raven / ravine | |
| Korkut | Korkut | Unknown | Turkish | | |
| Kornel | Cornelius/Cornelia | Latin | Czech | Words: horn | |
| Kornél | Cornelius/Cornelia | Latin | Hungarian | Words: horn | |
| Kornelius | Cornelius/Cornelia | Latin | German | Words: horn | |
| Korneliusz | Cornelius/Cornelia | Latin | Polish | Words: horn | |
| Kory | Corey/Corey | Latin | English | Words: raven / ravine | |
| Kosta | Konstantin/Konstanze | Latin | Greek | the steadfast | |
| Kostandin | Konstantin/Konstanze | Latin | Albanian | the steadfast | |
| Kostas | Konstantin/Konstanze | Latin | Greek | the steadfast | |
| Kostja | Konstantin/Konstanze | Latin | Russian | the steadfast | |
| Kotarou | Kotarou | Japanese | Kanji symbol, Japanese | Words: tiger / great, excellent, thick / son, boy | |
| Kouhei | Kouhei | Japanese | Kanji symbol, Japanese | maybe calm peace | |
| Kourtney | Courtney/Courtney | Old French | English | Words: short / nose | |
| Kraft | Kraft | Old High German | German | Words: strength, power | |
