| Kontrebande | contraband |
| Kontinuante | reflex |
| Kontranym | contranym |
| Kontratanz | contra |
| Kontrabass | double bass double-bass |
| Contenance | composure |
| Konkrement | calculus |
| Konstanze | Constance |
| Kontraalt | contralto |
| Kontrakt | compact contract |
| kontrieren | double |
| Konkubine | concubine |
| Konrad | Conrad |
| Konstante | constant |
| Kontra | con double |
| kontra | against versus |
| Kontrahent | opponent rival counterparty |
| Kontrapunkt | counterpoint |
| Kontrast | contrast |
| Kontrolle | inspection control |