| Konfliktpartei | belligerent |
| Kontaktdaten | contact details |
| Konditorei | confectionery pastry shop |
| Konfitüre | jam confiture |
| Konflikt | conflict clash |
| Konfliktdiamant | blood diamond |
| konfligieren | conflict#Verb |
| Linkspartei | left-wing party |
| Kontinuante | reflex |
| König Artus | King Arthur |
| konfrontativ | confrontational contrastive |
| konnektieren | bind |
| kontextfrei | context-free |
| Konfetti | confetti |
| Konizität | conicity |
| Konstante | constant |
| Konstituente | constituent |
| Konterfei | portrait |
| konfiszieren | confiscate |
| konfrontieren | confront |