| Konstantinopel | Constantinople |
| Konstantin | Constantine |
| Konstante | constant |
| konstatieren | ascertain note state |
| Konstanze | Constance |
| Konventikel | conventicle |
| Konventionen | decorum |
| Konstituente | constituent |
| Kontaktlinse | contact lens |
| konstant | constant constantly |
| konstitutionell | constitutional |
| kontaktieren | contact |
| konventionell | conventional |
| Instantnudeln | instant noodle |
| Kuhantilope | hartebeest |
| Konsonantismus | consonantism |
| Konsultation | consultation |
| Konsumtion | consumption |
| Kontaktangaben | contact details |
| Kontaktdaten | contact details |