| Kongresspolen | Congress Poland |
| Großpolen | Greater Poland |
| Konfession | denomination |
| Kongress | congress convention |
| Konzession | concession admission licence |
| Koexpression | coexpression |
| Kompression | compression |
| Konkretion | concretion |
| Kontrollen | control |
| Konventionen | decorum |
| kongruieren | agree |
| Konkussion | concussion |
| Konsole | console |
| Konversion | conversion |
| Königssohn | king's son |
| kondensieren | condense precipitate |
| konkretisieren | concrete concretise |
| kontrastieren | contrast |
| konversieren | converse make conversation |
| Digression | excursion |