| Konsensus | consensus |
| Konsens | consensus consent |
| Kondensat | condensate |
| Nonsens | nonsense |
| Konfucius | Confucius |
| Konfuzius | Confucius |
| Konvent | convent |
| Können | competence ability |
| können | can be able to may be allowed to know |
| konfus | confused |
| konsanguin | consanguineous |
| Kongress | congress convention |
| Konjektur | conjecture |
| Konserve | preserve |
| Konsonant | consonant |
| Konsul | consul |
| Konsum | consumption |
| Konsumgut | final good |
| Kontinuum | continuum |
| kongenial | congenial |