| KO | Ko |
| Ko Chang | Ko Chang |
| Ko och Kyckling | Cléo et Chico |
| Ko Tao | Koh Tao |
| Ko Un | Ko Un |
| koagel | coagulant |
| koagulant | floculant |
| koagulation | floculation |
| koagulera | épaissir |
| koagulering | coagulation |
| koaguleringsmedel | floculant |
| koagulermedel | floculant |
| koala | koala |
| koalesator | coalesceur |
| Koan | Kōan |
| Koartikulation | Coarticulation |
| koaxialkabel | coaxial |
| Kobarid | Kobarid |
| kobbe | île |
| Kobe | Kōbe |
| Kobe Bryant | Kobe Bryant |
| kobent | cagneux |
| Koblenz | Coblence |
| Kobo Abe | Kōbō Abe |
| kobojsare | vacher |
| Kobold | Kobold |
| kobolt | cobalt |
| Koboltblått | Bleu de cobalt |
| Koboltbomb | Bombe salée |
| Kobos universitet | Université de Kōbe |
| Kobudo | Kobudo |
| Kochab | Beta Ursae Minoris |
| Kocher | Kocher |
| Kochi | Kōchi |
| Kochi prefektur | Préfecture de Kōchi |
| Kochs postulat | Postulats de Koch |
| kock | chef |
| kod | source |
| koda | chiffrer |
| Kodachrome | Kodak Kodachrome |
| kodad | chiffré |
| Kodak | Kodak |
| Kodak Theatre | Kodak Theatre |
| kodein | codéine |
| Kodiak | Kodiak |
| Kodiak Island | Île Kodiak |
| kodifiera | codifier |
| kodifiering | codification |
| Kodimension | Codimension |
| Kodkod | Kodkod |
| kodning | codage |
| Kodomo | Kodomo |
| kodon | codon |
| Kodspråk | Pig latin |
| Koeberg kärnkraftverk | Centrale de Koeberg |
| koefficient | facteur |
| Koenigsegg CCR | Koenigsegg CCR |
| Koenigsegg CCX | Koenigsegg CCX |
| Koenigsegg CCXR | Koenigsegg CCXR |
| Koenzym | Coenzyme |
| koffein | caféine |
| koffeinfri | décaféiné |
| kofferdifartyg | navire de commerce |
| koffert | boîte |
| Koffertfiskar | Ostraciidae |
| Kofi Annan | Kofi Annan |
| kofot | pied-de-biche |
| kofta | veste |
| Kofu | Kōfu |
| Kofun | Période Kofun |
| kofångare | pare-choc |
| Kognitionsvetenskap | Sciences cognitives |
| kognitiv | cognitif |
| Kognitiv beteendeterapi | Psychothérapie cognitivo-comportementale |
| Kognitiv psykologi | Psychologie cognitive |
| Kognitiv terapi | Psychothérapie cognitivo-comportementale |
| Koguryo | Koguryŏ |
| Kogänget | La Ferme se rebelle |
| Koh Samui | Ko Samui |
| Koh-i-noor | Koh-i Nor |
| koherde | vacher |
| koherent | cohérent |
| kohesions- | cohésif |
| Kohgiluyeh och Buyer Ahmad | Kohkiluyeh et Buyer Ahmad |
| Kohortstudier | Étude de cohorte |
