| Kaarina | Karina | Kathrine | Kelvin | Kimo | Kolomba | Krystof |
| Kaarle | Karissa | Kathryn | Ken | Kin | Kolombine | Krystyn |
| Kaarlo | Karita | Kathy | Kenan | King | Kolumba | Ksenia |
| Kacper | Karl | Kati | Kendal | Kinga | Kolumban | Ksenija |
| Kade | Karla | Katie | Kendall | Kinge | Konni | Kuba |
| Kaden | Karlene | Katina | Kendra | Kingsley | Konny | Kühnemund |
| Kader | Karlfred | Katinka | Kendrick | Kip | Konrad | Kuisma |
| Kadir | Karlfried | Katja | Kenelm | Kipling | Konrada | Kunibald |
| Kae | Karlhans | Katjana | Kenina | Kira | Konradin | Kunibert |
| Kaelea | Karlheinrich | Katjuscha | Kenith | Kiran | Konradine | Kunigonde |
| Kaety | Karlheinz | Katka | Kenna | Kirby | Konsta | Kunigunde |
| Kai | Karline | Katlyn | Kennard | Kirill | Konstantia | Kunimund |
| Kaia | Karlludwig | Katri | Kennedy | Kirk | Konstantin | Kuno |
| Kaie | Karlmann | Katrien | Kennet | Kirsi | Konstantina | Kunto |
| Kaija | Karly | Katriina | Kenneth | Kirstan | Konstantine | Kunz |
| Kaila | Karol | Katrijn | Kennith | Kirsten | Konstantyn | Kurt |
| Kailee | Karola | Katrin | Kenny | Kirsti | Konstanze | Kurtis |
| Kailey | Karoliina | Katrina | Keno | Kirstie | Konz | Kurtmartin |
| Kaino | Karolin | Katrine | Kenrick | Kirstin | Koppel | Kyla |
| Kairan | Karolina | Katriona | Kent | Kirsty | Kora | Kyle |
| Kaisa | Karoline | Katrischa | Keoni | Kit | Korbinian | Kylee |
| Kaisu | Karolyn | Katy | Keren | Kitty | Kord | Kyleigh |
| Kaitlin | Karp | Katya | Kerena | Kjeld | Korderlia | Kyler |
| Kaitlyn | Karri | Kay | Keri | Kjell | Kordia | Kylie |
| Kaitlynn | Karrie | Kaye | Kerim | Kjetil | Kordula | Kylli |
| Kaj | Karris | Kayla | Kermit | Klaara | Korey | Kyllikki |
| Kaja | Karsta | Kaylee | Kerr | Klaas | Korinna | Kym |
| Kala | Karsten | Kayleen | Kerri | Klaes | Kornel | |
| Kaleigh | Karstine | Kayleigh | Kerrie | Klaif | Kornelia | |
| Kaleo | Karyna | Kayley | Kerry | Klair | Kornelius | |
| Kali | Kasandra | Kaylie | Kersta | Klara | Korona | |
| Kalidas | Kasey | Kayly | Kersten | Kläre | Kort | |
| Kalixtus | Kasia | Kayra | Kersti | Klarina | Kory | |
| Kalle | Kasim | Kazia | Kerstin | Klarissa | Kosima | |
| Kallias | Kasimir | Kea | Kerstina | Klas | Kosimo | |
| Kalliope | Kasimira | Kean | Kerstine | Klaudia | Kosmas | |
| Kallisto | Kaspar | Keane | Kester | Klaudius | Kosti | |
| Kalman | Kasper | Keanu | Kevin | Klaus | Kostja | |
| Kalypso | Kasperi | Keara | Kevon | Klausdieter | Kourtney | |
| Kam | Kassandra | Keaton | Khara | Klausjürgen | Kriemhilde | |
| Kamal | Kassia | Keegan | Khloe | Kleitos | Krikor | |
| Kamala | Kassian | Keeleigh | Kia | Klemen | Krimhilde | |
| Kamar | Kassidy | Keeley | Kian | Klemens | Kris | |
| Kamer | Kassius | Keely | Kiana | Klement | Krischna | |
| Kameron | Kassy | Keenan | Kiara | Klementina | Krishna | |
| Kamil | Kat | Kees | Kiaran | Klementine | Krispin | |
| Kamila | Kata | Kegan | Kiarra | Kleopatra | Krista | |
| Kamill | Katalin | Kei | Kiefer | Kleopha | Kristal | |
| Kamilla | Katalina | Keie | Kielo | Kletus | Kristen | |
| Kamillo | Katalyn | Keimo | Kiera | Kliment | Kristeen | |
| Kamryn | Katariina | Keira | Kieran | Klio | Kristel | |
| Kandida | Katarin | Keiron | Kieron | Klithilde | Kristen | |
| Kane | Katarina | Keisha | Kierra | Klivia | Krister | |
| Kanerva | Kate | Keith | Kiersten | Klodewig | Kristi | |
| Kara | Katee | Keitha | Kigan | Klodwig | Kristia | |
| Karam | Kateline | Keithia | Kiia | Klothar | Kristian | |
| Karda | Katelyn | Keke | Kiley | Klothilde | Kristie | |
| Kardelen | Katelynn | Kelan | Kilian | Klotild | Kristiina | |
| Kareem | Katerina | Kelcey | Kilie | Klytus | Kristin | |
| Kareen | Katharina | Keld | Killian | Knud | Kristina | |
| Karel | Kathe | Kelda | Kim | Knut | Kristine | |
| Karen | Käthe | Kelia | Kimball | Kobe | Kristof | |
| Karena | Katherine | Kelleigh | Kimberle | Koby | Kristóf | |
| Karenza | Kathi | Kelley | Kimberlee | Köbes | Kristoffer | |
| Kari | Kathie | Kelli | Kimberleigh | Kodey | Kristopher | |
| Karia | Kathleen | Kellie | Kimberley | Kody | Kristy | |
| Karianne | Kathlyn | Kelly | Kimberly | Kofi | Krisztina | |
| Karim | Kathrein | Kelsey | Kimiko | Kolbert | Krysia | |
| Karima | Kathrin | Kelsi | Kimmo | Kolja | Krystal | |
| Karin | Kathrina | Kelsie | Kimmy | Kolman | Krystina |