| Knarr | Knara |
| Knattspyrnufélag Reykjavíkur | KR Reykjavík |
| Knattspyrnufélagið Fram | Fram Reykjavík |
| Knattspyrnufélagið Víkingur | Víkingur Reykjavík |
| Knautia | Świerzbnica |
| Knautia arvensis | Świerzbnica polna |
| knave | walet |
| knavery | niegodziwość |
| knead | gnieść |
| Kneading machine | Dzieża |
| knee | kolano |
| knee high | podkolanówka |
| knee sock | podkolanówka |
| kneecap | jabłko |
| kneel | klęczeć |
| kneel down | klękać |
| Kneeling chair | Klękosiad |
| Kneiphof | Knipawa |
| Knesset | Kneset |
| knick-knack | cacko |
| Knidos | Knidos |
| knife | nóż |
| Knife in the Water | Nóż w wodzie |
| Knife rest | Kozły hiszpańskie |
| knight | kawaler |
| Knight Online | Knight-Online |
| Knights Hospitaller | Joannici |
| Knights of the Cross with the Red Star | Zakon Krzyżowców z Czerwoną Gwiazdą |
| Knights of the Round Table | Rycerze Okrągłego Stołu |
| Knin | Knin |
| Knipling | Koronka klockowa |
| knit | robić na drutach |
| Knittelfeld | Knittelfeld |
| knitting needle | drut |
| Knittlingen | Knittlingen |
| Knives | Nóż |
| Knivskejelloden | Knivskjellodden |
| Knivskjellodden | Knivskjellodden |
| Knivsta Municipality | Gmina Knivsta |
| knob | gałka |
| knock | pukać |
| knock down | przewracać |
| Knock Nevis | TT Knock Nevis |
| knock on wood | odpukać w niemalowane drewno |
| knock-kneed | koślawy |
| knoll | górka |
| Knoppix | Knoppix |
| Knorr | Knara |
| Knossos | Knossos |
| Knosssos | Knossos |
| knot | węzeł |
| Knot theory | Teoria węzłów |
| Knots Landing | Kalifornia |
| knotty | sękaty |
| know | wiedzieć |
| know-all | mądrala |
| know-it-all | mądrala |
| knowingly | umyślnie |
| knowledge | wiedza |
| Knowledge economy | Ekonomia informacji |
| Knowledge Management System | Knowledge Management System |
| known | znany |
| Knox class frigate | Fregaty typu Knox |
| Knox County | Hrabstwo Knox |
| knuckle | knykieć |
| knuckle bump | żółwik |
| knuckle of pork | golonka |
| Knucklebone | Kość |
| Knuckles the Echidna | Knuckles the Echidna |
| Knudsen number | Liczba Knudsena |
| Knudson hypothesis | Hipoteza Knudsona |
| Knurów | Knurów |
| Knut | Knut |
| Knut Hamsun | Knut Hamsun |
| Knut Lundmark | Knut Lundmark |
| Knut Ångström | Knut Johan Ångström |
| Knuth Prize | Nagroda Knutha |
| KNVB Cup | Puchar Holandii w piłce nożnej |
| KNX | System EIB |
| Knyszyn | Knyszyn |
| Knüll | Knüllgebirge |
| Knüllwald | Knüllwald |
| Ko Chang | Ko Chang |
| Ko Pha Ngan | Phangan |
| Ko Samet | Ko Samet |
| Ko Samui | Ko Samui |
| Ko Un | Ko Un |
| koala | koala |
