| Kataphrakt | cataphract |
| Katarakt | cataract |
| Kataphora | cataphora |
| Katasteramt | cadastre |
| Katachrese | catachresis |
| Katamaran | catamaran |
| Katapult | catapult |
| Paraphrase | paraphrase |
| Klathrat | clathrate |
| Katanga | Katanga |
| Katarerin | Qatari |
| Katarr | catarrh |
| Kattegatt | Kattegat |
| katzenhaft | catlike |
| Katafalk | catafalque |
| Katakana | katakana |
| Katalane | Catalan |
| Katana | katana |
| Katar | Qatar |
| Katarer | Qatari |