| Konto | account |
| Kontor | office |
| Kontobuch | account book |
| Kongo | Congo Kongo |
| Skonto | discount cash discount early payment discount settlement discount |
| Kontorsion | contortion |
| könnte | might |
| Kondom | condom rubber |
| Kondor | condor |
| Konter | counter-attack |
| Kontra | con double |
| kontra | against versus |
| Kontur | contour outline |
| Konvoi | convoy |
| König | king King |
| Conté | Conté |
| Font | font |
| Mont. | Mon |
| Wonton | wonton |
| monton | monotone |