| katjon | cation |
| Katmandu | Kathmandu |
| Katmandudalen | Kathmandu Valley |
| Kato Takaaki | Katō Takaaki |
| katod | cathode |
| katolicism | Catholicism |
| katolicismen | Catholicism |
| katolik | catholic |
| katolsk | Catholic |
| katolsk präst | priest |
| Katolska Kyrkan i Sverige | Roman Catholicism in Sweden |
| Katolska kyrkan på Färöarna | Roman Catholicism in the Faroe Islands |
| Katolska kyrkans katekes | Catechism of the Catholic Church |
| Katolska ligan | Catholic League |
| Katolska östkyrkor | Eastern Catholic Churches |
| Katorga | Katorga |
| Katowice | Katowice |
| Katrin Apel | Katrin Apel |
| Katrin Sass | Katrin Saß |
| Katrina and the Waves | Katrina and the Waves |
| Katrinedal | Katariina |
| Katrineholm | Katrineholm Municipality |
| Katrineholms kommun | Katrineholm Municipality |
| Katsina | Katsina State |
| Katsuaki Watanabe | Katsuaki Watanabe |
| Katsuhiro Otomo | Katsuhiro Otomo |
| Katsura Taro | Katsura Tarō |
| Katsuror | Katsura |
| katt | cat |
| Katt -en -er | Cat |
| Katt bland duvor | Cat Among the Pigeons |
| katt- | feline |
| katta | tabby |
| kattaktig | catlike |
| Kattbjörn | Red Panda |
| kattdjur | cat |
| Kattegatt | Kattegat |
| Katten Gustaf | Garfield |
| Katten i hatten | The Cat in the Hat |
| Katten också | That Darn Cat |
| katter | cats |
| Kattfot | Antennaria dioica |
| kattguld | fool's gold |
| kattlik | feline |
| kattlåda | cat box |
| kattmat | cat food |
| Katträv | Swift Fox |
| Kattsvans | Chenille plant |
| kattuggla | tawny owl |
| kattungar | kittens |
| kattunge | kitten |
| Kattusseqatigiit | Independents |
| Katyń | Katyn |
| Katyńmassakern | Katyn massacre |
| Kauai | Kauai |
| Kaufdorf | Kaufdorf |
| Kaufungen | Kaufungen |
| Kaukasien | Caucasus |
| Kaukasisk ovcharka | Caucasian Shepherd Dog |
| Kaukasiska Albanien | Caucasian Albania |
| Kaukasiska kriget | Caucasian War |
| Kaukasiska språk | Languages of the Caucasus |
| Kaukasus | Caucasus |
| Kaunas | Kaunas |
| Kaunas internationella flygplats | Kaunas Airport |
| Kaunas tekniska universitet | Kaunas University of Technology |
| Kaunos | Kaunos |
| Kaupthing Bank | Kaupthing Bank |
| kaurisnäcka | cowrie |
| Kausalitet | Causality |
| kausativ | causative |
| Kaustby | Kaustinen |
| kaustik | caustic |
| kauterisation | cauterization |
| kauterisera | burn off |
| Kautokeino kommun | Kautokeino |
| kautschuk | cautchoue |
| Kavadarci | Kavadarci |
| kavaj | jacket |
| kavajkostym | business suit |
| Kavajë | Kavajë |
| Kavajë distrikt | Kavajë District |
| Kavala | Kavala Prefecture |
| kavaljer | cavalier |
| kavalkad | cavalcade |
| kavalleri | cavalry |
| kavallerist | trooper |
| kavel | rolling pin |
| Kaveri | Kaveri River |
| kaviar | caviar |
| kavitet | cavity |
| kavitetsdjur | coelenterates |
| kavla upp sina ärmarna | tuck up one's sleeves |
| kavla upp ärmarna | roll up one's sleeves |
| kavla ut | roll out |
| Kavála | Kavala |
| Kawaii | Cuteness in Japanese culture |
| Kawashima Kiko | Princess Akishino |
| kaxe | bigwig |
| kaxig | cocksure |
| Kay | Sir Kay |
| Kay Stammers | Kay Stammers |
| Kayanza | Kayanza Province |
| Kayseri | Kayseri |
| Kazaa | Kazaa |
| Kazaker | Kazakhs |
