| Klement Gottwald | Klement Gottwald |
| Klemm | Hanns Klemm |
| Kleobis and Biton | Cléobis et Biton |
| Klepht | Klephte |
| Klepp | Klepp |
| kleptomania | kleptomanie |
| kleptomaniac | kleptomane |
| Kleve | Clèves |
| Klezmer | Klezmer |
| Klickitat tribe | Klickitat |
| Kliment Voroshilov | Kliment Vorochilov |
| Kliment Voroshilov tank | Char Kliment Voroshilov |
| Klin | Kline |
| Klinaklini | Klinaklini |
| Kling Klang | Kling Klang |
| Klingenberg | Klingenberg |
| Klingenthal | Klingenthal |
| Klingnau | Klingnau |
| Klingon Language Institute | Klingon Language Institute |
| Kliper | Kliper |
| Klippan Municipality | Commune de Klippan |
| Klippel-Trenaunay-Weber syndrome | Syndrome de Klippel-Trenaunay |
| Klipsch Audio Technologies | Klipsch |
| Klipspringer | Oréotrague |
| Klismaphilia | Clysterophilie |
| Klisura | Klisoura |
| Kljajićevo | Kljajićevo |
| Ključ | Clef |
| KLM | KLM Royal Dutch Airlines |
| KLM Cityhopper | KLM Cityhopper |
| Klockestrand | Klockestrand |
| Klondike | Solitaire |
| Klondike River | Klondike |
| Klosters | Klosters-Serneus |
| Kloten | Kloten |
| Kluane National Park and Reserve | Parc national et réserve de parc national Kluane |
| Klubi | Klubo |
| Klumpke-Roberts Award | Klumpke-Roberts Award |
| Klushino | Kluchino |
| Klute | Klute |
| Klyazma River | Kliazma |
| Klyuch | Clef |
| Klyuchevskaya Sopka | Klioutchevskaïa Sopka |
| Klára Zakopalová | Klára Zakopalová |
| Kléber de Sousa Freitas | Kléber de Sousa Freitas |
| Klöße | Knödel |
| KMail | KMail |
| KN | KN |
| Knabstrup | Knabstrup |
| knack | truc |
| Knack Randstad Roeselare | Knack Roeselare |
| Knanaya | Knanayas |
| Knapp | Knapp |
| knapsack | sac à dos |
| Knattspyrnudeild UMFG | UG Grindavík |
| Knattspyrnufélag Akureyrar | KA Akureyri |
| Knattspyrnufélag Reykjavíkur | KR Reykjavík |
| Knattspyrnufélagið Fram | Fram Reykjavík |
| Knattspyrnufélagið Víkingur | Víkingur Reykjavík |
| Knattspyrnufélagið Þróttur | Þróttur Reykjavík |
| Knautia | Knautia |
| Knautia arvensis | Knautie des champs |
| knave | valet |
| knead | pétrir |
| Kneading roller | Cylindre |
| knee | genou |
| Knee cartilage replacement therapy | Gonarthrose |
| knee-high | à hauteur du genou |
| knee-length | qui descend jusqu'au genou |
| kneecap | rotule |
| kneel | s'agenouiller |
| knell | glas |
| Knesset | Knesset |
| Knick-Ei | Knick-Ei |
| knickerbockers | knickerbockers |
| knickers | knickerbockers |
| knickknack | bibelot |
| Knidos | Cnide |
| knife | couteau |
| knife grinder | appareil à aiguiser les couteaux |
| Knife rest | Chevaux de Frise |
| Knife throwing | Lancer de couteaux |
| knife-edge | fil d'un couteau |
| Knife-like | Ponçage |
| knight | cavalier |
| Knight Anole | Anolis equestris |
| knighthood | chevalerie |
| knightly | chevaleresque |
| Knights Hospitaller | Ordre de Malte |
| Knights of Columbus | Chevaliers de Colomb |
| Knights of Labor | Knights of Labor |
