| koala | koala |
| koalabeer | koala |
| koalabeertje | koala |
| Koan | Kōan |
| kobalt | cobalt |
| Kobarid | Kobarid |
| kobbe | spider |
| Kobe | Kobe |
| Kobe Bryant | Kobe Bryant |
| Kobersdorf | Kobersdorf |
| Koblentz | Koblenz |
| Koblenz | Koblenz |
| kobold | goblin |
| Kobudo | Kobudo |
| Kobun | Emperor Kobun |
| Kobylin | Kobylin |
| Kobyłka | Kobyłka |
| Kocab | Beta Ursae Minoris |
| Kocaeli | Kocaeli Province |
| Kocaelispor | Kocaelispor |
| Koch | Koch |
| Kochel am See | Kochel |
| Kochi | Kōchi Prefecture |
| Kochs gentiaan | Gentiana acaulis |
| Kock | Kock |
| Kodachi | Kodachi |
| Kodachrome | Kodachrome |
| Kodak Theatre | Kodak Theatre |
| kodde | cattail |
| koddig | comic |
| Kodiakeiland | Kodiak Island |
| Kodokan | Kodokan |
| Kodros | Codrus |
| koe | cow |
| Koeantilopen | Alcelaphinae |
| Koeban | Kuban River |
| koebel | cowbell |
| Koeblai Khan | Kublai Khan |
| Koefa | Kufa |
| Koefisch schrift | Kufic |
| Koehaaien | Cow sharks |
| koeiehuid | cowhide |
| koeienbel | cowbell |
| Koeienboleet | Suillus bovinus |
| koeienmelkster | milker |
| koeienvlaai | cow pat |
| koeiestal | cowshed |
| koeioneren | browbeating |
| Koejbysjev | Kuybyshev |
| koek | cake |
| koekbakkerij | confectionery |
| koekenpan | frying pan |
| koekepan | frying pan |
| Koekiemonster | Cookie Monster |
| koekje | biscuit |
| Koekjessnijder | Cookie-cutter shark |
| koekjestrommel | cookie jar |
| koekoek | cuckoo |
| koekoeksbloem | campion |
| koekoeksklok | cuckoo clock |
| Koekoeksvogels | Cuculiformes |
| koel | chill |
| koelbloedig | audacious |
| koelbox | icebox |
| koelcel | refrigerator |
| koele | cold |
| koelemmer | cooler |
| koelen | cool down |
| koelie | bearer |
| koeling | refrigeration |
| koelkast | refrigerator |
| Koelkastmoeder-theorie | Refrigerator mother |
| koelmiddel | coolant |
| Koeloendameer | Kulundinskoye Lake |
| koelte | chill |
| koeltjes | coldly |
| koeltoren | cooling tower |
| Koema-Manytsjlaagte | Kuma-Manych Depression |
| Koemanen | Cumans |
| Koemenië | Cumania |
| koen | audacious |
| Koenigsegg CCR | Koenigsegg CCR |
| Koenigsegg CCX | Koenigsegg CCX |
| Koenraad | Conrad |
| Koenraad de Grote | Conrad I of Bohemia |
| Koenraad I van Bohemen | Conrad I of Bohemia |
| Koenraad I van Franken | Conrad I of Germany |
| Koenraad I van Luxemburg | Conrad I of Bohemia |
| Koenraad I van Zwaben | Conrad I of Bohemia |
| Koenraad I van Zähringen | Conrad I of Bohemia |
| Koenraad II Otto van Bohemen | Conrad II of Bohemia |
| Koenraad III van het Heilige Roomse Rijk | Conrad III of Germany |
| Koenraad IV van het Heilige Roomse Rijk | Conrad IV of Germany |
| Koenraad Prul | Casey Coot |
| Koenraad van Bourgondië | Conrad of Burgundy |
| Koenraad van Franken | Conrad II of Italy |
| Koenraad van Mazovië | Konrad I of Masovia |
| Koenraad van Monferrato | Conrad of Montferrat |
| koepel | skylight |
| koepelorganisatie | umbrella organisation |
| koepelvormig | domed |
| koepokken | cowpox |
| Koeptsjino | Kupchino |
| Koeptsjinsko-Primorskaja-lijn | Frunzensko-Primorskaya Line |
| Koera | Kura River |
| Koerd | Kurdish |
| Koerden in Syrië | Kurds in Syria |
| Koerdisch | Kurdish |
| Koerdische Arbeiderspartij | Kurdistan Workers Party |
| Koerdische Autonome Regio | Iraqi Kurdistan |
| Koerdische Democratische Partij Irak | Kurdistan Democratic Party of Iraq |
| Koerdische Democratische Partij Iran | Kurdistan Democratic Party of Iran |
| Koerdistan | Kurdistan |
| Koereiger | Cattle Egret |
| koeren | coo |
| Koerenivsko-Tsjervonoarmiejska-lijn | Kurenivsko-Chervonoarmiyska Line |
| Koergan | Kurgan |
| Koerganhypothese | Kurgan hypothesis |
| koerier | courier |
| koerierster | courier |
| Koerilen | Kuril Islands |
| Koerilentrog | Kuril-Kamchatka Trench |
| Koerilsk | Kurilsk |
| Koerland | Courland |
| Koerma | Kurma |
| Koermanbek Bakijev | Kurmanbek Bakiyev |
| Koerol | Cuckoo-roller |
| koers | rate |
| koers Oost | eastbound |
| koers veranderen | veer |
| Koerse Haf | Curonian Lagoon |
| Koerse Schoorwal | Curonian Spit |
